History ParentalSubstitute / FanWorks

** Olga is this to Chloe after saving the half-elf from slavery. The two of them would later become each other's LivingEmotionalCrutch.

* ''Fanfic/WhatIsAPromiseWorth'': Catelyn becomes Jon Snow's guardian after Ned dies from fever so that by the time [[spoiler:she has him legitimized and creates his coat-of-arms]], there's no question of who Jon's mother, even after his parentage is revealed. Later on when [[spoiler:Daenerys, Stannis, and Jon meet with Edmure, Edmure calls him "nephew"]] because:

* ''Fanfic/GinnyWeasleyDoubleLife'' (''Literature/HarryPotter''): Not shown directly, but Milikan’s flashbacks reveal that she took on a parental role for one of her past servants while the girl’s parents were on holiday and her only guardians were an aunt and uncle who occasionally visited. Milikan’s influence compelled the girl to become less of a rebellious brat, lose some weight and be more polite to her parents even after Milikan left.

* ''Fanfic/LinkedInLifeAndLove'' (''WebAnimation/{{RWBY}}''): Roman Torchwick has been taking care of Neo since she was twelve, making sure to teach her how to take care of herself and always sliding her enough jobs that she had money to spare. [[spoiler:Eventually, Roman reveals that on their first job, when Neo got caught and he had to bail her out, he told the cops he was her father. She knew that, but what she didn't know was that rather than forging the adoption paperwork, it was faster for him to just fill out real adoption paperwork and then bribe a clerk to backdate it a few years. Which means Neo is legally Neo Rose, cousin to Yang and Ruby]].

* ''Fanfic/YouSeeThem'' (''VideoGame/Persona5''): Sojiro is one not just for Futaba like in canon, but also for Akira/Ren, often because the latter's parents rejected him after the false accusation.

* ''[[https://www.fanfiction.net/s/13537494/1/Memories-of-an-Angel Memories of an Angel]]'' (''Anime/AngelBeats''): Otonashi meets a young Noda [[spoiler:during the train accident that would end the former's life]]. After learning about the boy's abusive father, Otonashi wanted to adopt Noda so he and Kanade can give him a happier life. Even in the afterlife, Noda still had great admiration for the doctor-in-training. [[spoiler: Unfortunately, Otonashi's death and Kanade's fall into grief afterwards prevent this from occurring]].

* ''[[https://www.fanfiction.net/s/10264509/228/Tales-of-Fairies Tales of]] [[https://www.fanfiction.net/s/10264509/550/Tales-of-Fairies Fairies]]'' (''Manga/FairyTail''): In these genderbend oneshots, Aquarius is one to [[GenderFlip Luca Heartfillia]], taking the role of a surrogant mother after his real mother's death and his father becoming distant. She is responsible for training him to use self-defense with his whip, and often disapproves of the girls that come near her "precious boy" like Natsu.

* ''[[https://archiveofourown.org/works/26698570/ Strange Magic]]'' sees Doctor Strange (Franchise/MarvelCinematicUniverse) take the infant Franchise/HarryPotter from Privet Drive after Dumbledore has left him there and subsequently return him to Sirius Black after confirming Sirius's innocence. While Sirius and Remus are Harry's primary guardians, after the three relocate to America so that Wanda Maximoff can help teach Harry how to control his enhanced abilities and Bruce Banner and Tony Stark can work on a treatment for Remus, Harry also mistakes Natasha Romanoff for Lily as they have the same hair colour, to the extent that Natasha is able to calm Harry down when he has nightmares and accepts him calling her 'Mum'.

[[AC:Specific works]]
%%Entries have been cleaned up and alphabetized; still need to be labeled with their individual series and sorted into folders.

* ''Fanfic/AbraxasHrodvitnon'' (''Film/MonsterVerse''): Several examples, as listed below.
** Serizawa was this to Vivienne Graham like in canon's AllThereInTheManual materials, and she has a ''[[HeroicBSOD severe]]'' [[HeroicBSOD BSOD]] after she learns of his death. The BalefulPolymorph even calls him "father" a few times in both Japanese and [[AnimalTalk Kaiju Talk]] afterward.
** Vivienne in turn was this towards Madison while Emma immersed herself in work. Madison sincerely admits a few times, including to Vivienne herself, that she wished Vivienne would've become her mother if things had happened differently, and Mark outright states that Vivienne was more of a mother to Madison than her actual mother managed to be. It's also an apparent MythologyGag towards [[https://www.fanfiction.net/s/13326403/ one of the author's other fanfictions]].
** Vivienne can be seen as a form of this towards San, in contrast to his [[BigBrotherBully more malicious]] [[AbusiveParents older brothers]] who were the only kin he knew before [[BrainUploading bonding to Vivienne]] [[TwoBeingsOneBody as his new sister]] -- he feels little sentiment for Ichi and Ni after being separated from Ghidorah, compared to how Vivienne eventually [[DesperatelyCravesAffection shows him affection]] and forms an [[SiblingTeam emotional bond]] with him.
** Hinted at with Thor (''Titanus þunraz''), who experiences a jolt of paternal instinct when answering Vivienne and San's calls, and afterward has no problem with sticking by and mentoring them.
** Again like [[AllThereInTheManual In The Manual for Canon]], Ash was [[LikeASonToMe Like A Son]] to Jonah. [[VirtueIsWeakness And he died because Jonah didn't think to instead have]] [[IgnoredEpiphany someone who wasn't dear to him take point at Outpost 32]].
** Mothra apparently considers San and Vivienne her children after the TwoBeingsOneBody [[ArtificialHybrid Hybrid]]'s EmergencyTransformation. At one point, Vivienne is involuntarily reminded of her human mother when she glances at Mothra.
* ''Fanfic/AdviceAndTrust'' (''Anime/NeonGenesisEvangelion''): Misato is this to Shinji and Asuka. She takes care after them and even tries to encourage them to get together... having no idea that they hooked up with each other when she was not looking.
* ''Fanfic/AnotherChronicle'' (''VideoGame/XenobladeChronicles2'') shows that Dromarch has a very parental bond with Nia. He's her most constant companion, treating her with a caring and protective attitude, and she generally turns to him for guidance and emotional support.
* ''Fanfic/BaitAndSwitchSTO'' (''VideoGame/StarTrekOnline''): Lieutenant Commander Reshek Gaarra's mother [[MissingMom died when he was two]], and his father was an officer in the Bajoran Militia's local garrison and had to go out on maneuvers a week out of every month. He was raised by his father and his paternal aunt Nefris.

* ''Fanfic/TheBoyWithoutAFairy'' (a darker retelling of ''Videogame/TheLegendOfZeldaOcarinaOfTime''): Link sees Saria as this due to her being the most involved in raising him as a baby. As the story progresses he begins to see Navi as this too much to her guilt.

* ''Fanfic/TheChildOfLove'' (''Anime/NeonGenesisEvangelion''): A while after Asuka got ditched by her father and step-mother Misato became her guardian, and later Kaji. When Shinji arrived on Tokyo-3, Misato became his guardian and then she took Asuka in again. Both Misato and Kaji are the only reliable adult role models both teenagers have, and the only people really looked after them after their families abandoned them.

** Wanda Maximoff serves as this to Harry - unsurprising, given that she's his godmother and his actual mother is dead. [[spoiler: Well, actually, AscendedToAHigherPlaneOfExistence]]. Pepper Potts, in addition to being TeamMom to the Avengers in general, was also one to Harry before Wanda showed up, and continues (to a lesser extent) to be one, given that Wanda isn't always around due to [[BarrierMaiden her job]].

* ''Fanfic/ChildrenOfRemnant'' (''WebAnimation/RWBY''): Winter reveals that after her mother's death, it was Kali who stepped in to comfort her and help fill the gap that Willow's death left behind. As a result, Winter has complete trust in her abilities and intelligence.

* ''Fanfic/CommonSense'' (''Anime/PokemonTheSeries''): It's revealed that Misty's parents [[ParentalAbandonment abandoned the Gym]] when she was younger. With her older sisters being too busy and/or self-absorbed to look after her, the Pokémon of the Gym wound up looking after her with [[LikeBrotherAndSister Staryu and Goldeen]] playing with her and teaching her to swim while Starmie was the voice of reason growing up.
* ''Fanfic/ACrownOfStars'' (''Anime/NeonGenesisEvangelion'' and other): Misato was Shinji and Asuka's guardian and caretaker during the Angel War, at the end of the which she got killed. During the story Daniel brought her back, and she dedicated herself to fight to rebuild the post-Third Impact world as a way to atone for neglecting her wards during the War. During a conversation with Asuka she admits she was the closest thing they had to a parent, she screwed, and she is awfully sorry about it.
* ''Fanfic/DanceWithTheDemons'' (''ComicBook/{{Batman}}''): Philip Wayne raised his nephew Bruce after Thomas and Martha's deaths (as per Pre-Crisis canon).
-->Philip Wayne adjusted his hearing aid a bit and smiled. Bruce was almost 40 now, and he'd darned near given up on getting the whippersnapper married. To him had fallen the task of raising the boy, after his brother Thomas and Thomas's wife Martha had been shot dead in the street those long years ago. He'd never seen a boy so intense and serious as Bruce had been. The boy was either cracking half the books in the library, or doing experiments with his chemistry set, or building up his body, or doing gymnastics. But he'd turned out well, and then some.
* ''Fanfic/TheDearSweetieBelleContinuity'' (''WesternAnimation/MyLittlePonyFriendshipIsMagic''): In ''Dear Scootaloo'', Rainbow Dash was raised more or less personally by Firefly, former Wonderbolt and founder of the Cloudsdale Home for Wayward Pegasi, and as far as she's concerned Firefly ''was'' her mother.
* ''Fanfic/DeliverUsFromEvilSeries'' (''Literature/SherlockHolmes''): In ''Mortality'', Holmes's parents are never mentioned, so most likely Holmes sees his friend Watson as this.
* ''Fanfic/TheDifferentverse'' (''WesternAnimation/MyLittlePonyFriendshipIsMagic''): Derpy Hooves is this for Scootaloo, having raised her since she was a year old, though Scoots’ mother does drop in from time to time. Twilight is also this to Spike, whose biological parents are unknown.
* ''Fanfic/ADiplomaticVisit'' (''WesternAnimation/MyLittlePonyFriendshipIsMagic''): Discussed in chapter 15.
** Rarity admits that she sometimes feels she's more a mother to Sweetie Belle than a sister, and that her own mother feels that Rarity does a better job at raising Sweetie Belle than she does.
** Scootaloo is mainly raised by her two aunts (whom Rainbow Dash admits are more parents to Scoots than her birth parents), since her ''actual'' parents are away doing important scientific work.

* ''Fanfic/DoingItRightThisTime'' (''Anime/NeonGenesisEvangelion''): When Shinji and Asuka arrive to Tokyo-3 Misato takes them in... and shortly after they insist on she taking Rei in, too. When she asks Asuka what is going on, they explain that they were time travelers, and she had been her and Shinji's caretaker in the original timeline (and Rei did no longer want to be under Gendo's legal guardianship). After their explanations Misato agrees to be Rei's guardian, too.
* ''WebVideo/DragonBallZAbridged'' (''Anime/DragonBallZ'') plays with this, regarding the relationship between Piccolo and Gohan. It's downplayed in the beginning, as Piccolo's initial motive for kidnapping and training Gohan was for his own plans to take over the world. It actually moves closer to the source material after Namek, as both Goku and Piccolo train Gohan for the Androids. Both Gohan ''and'' Piccolo resent Goku's inattentiveness as a father. But Piccolo having this role seems to be closer to being an outward perception than a reality. And when Cell lampshades it in Episode 60, Piccolo and Goku both bristle at the idea, as the creators' attempt to kill the joke in the end.

* ''Fanfic/EquestriaGirlsFriendshipSouls'':

* ''Fanfic/EscapeFromTheHokagesHat'': Tsunade to all three of her students (Shizune, Naruto and Hinata). While Shizune is a fairly well adjusted adult, she spends most of her time helping Naruto and Hinata with their own personal issues.
* ''Fanfic/EscapeFromTheMoon'' (''WesternAnimation/MyLittlePonyFriendshipIsMagic''): In the sequel ''The Mare From the Moon'', per canon, Twilight is this to Spike, but it’s made more visible as Twilight actually refers to him as her son here, ''especially'' when Spliced starts calling her out on [[spoiler: her inadvertent stunting of his growth]].
* ''Manga/Evangelion303'': Ritsuko took care of Shinji for a short while when his father sent him away after his mother's death. However Ritsuko seemed to be always with his father, and Shinji did not like her very much. When the story starts he is twenty and he has been used to take care of himself for a long time.
* ''Fanfic/FadedBlue'': Blue Pearl acts as Steven's primary caregiver, and while she is as loyal to Steven as she was to Blue Diamond, she is treated more like a mother and friend than a servant.
* ''Fanfic/FallingBackwards'' and its sequel ''Flying Forwards'': Both stories have a rather sad variation on this trope. In it, Rainbow Dash receives brain damage after stunt gone wrong that leaves her mentally regressed to a child and ends up imprinting on Twilight as her mother. With no apparent way to fix her friend available, other than just shipping her off to a mental asylum and feeling guilty [[MyGreatestFailure over her failure to fully save her friend]], Twilight reluctantly takes Rainbow in and plays along with the whole "mommy" thing until a way to cure her can be found. [[spoiler: Ultimately no cure is found and with no other options available, Twilight [[FountainOfYouth physically regresses her to match her mental state]], so she at least has a second chance at life and accepts her new role as Rainbow's mother.]]
* ''Fanfic/FalloutEquestria'': Watcher explains that when the war began, Princess Celestia worked hard to keep the Mane Six out of danger because she saw them as her children. After a massacre, Celestia stepped down and her sister Princess Luna took over. Luna saw the Mane Six as equals or even saviors, and recruited them to win the war however possible. [[WellIntentionedExtremist That's when everything started going really bad]].
* ''Fanfic/FateBlackDawn'': Mordred assumes that the strange man who has been hanging around her mother is her father. Shirou doesn't have the heart to correct her, and immediately does everything in his power to be a better parent than Morgan and Arturia (though Arturia doesn't know about Mordred yet, he knows she won't do a very good job once she does know).
* ''Fanfic/FateStarryNight'': Ritsuka acts as Jack's "Mommy", trying to teach her right from wrong and limit her murderous impulses to monsters and Servants. He also cooks for her, praises her when she does well, and gives her all the affection she and the many other spirits that make up her form lacked in life.
* ''Fanfic/FateSunnyOrder'': Dr. Roman tries to be one for Mash. Unfortunately, he has no idea ''how'' to be a parent, and none of the male Servants have the best experience at being fathers for him to ask them.
* ''Fanfic/ForBetterOrForWorseOnePiece'': Thanks to being Corazon being SparedByTheAdaptation, he serves as this not only to Law, but also to Luffy, Ace, Sabo, and Bepo. Ironically, he's in complete denial over it, while everyone else (including the boys themselves) have acknowledged it.
* ''Fanfic/AForceOfFour'' (''ComicBook/PowerGirl''): Superman tried to be a father to his cousin, but Kara couldn't accept a surrogate.
-->'''Power Girl:''' We both cared about each other. We were both glad that we weren't the only Kryptonians left alive, when we found each other. But he wanted to play Daddy, because he'd never had a child. And I... couldn't do that, Jimmy. I had a daddy, and it wasn't Kal.
* ''Fanfic/Gensokyo20XX'':
** We have this happen with Yukari and Reimu, the former being the latter's wet-nurse. However, this was played for slight drama, as, to be expected, Reimu was bonded to her and wouldn't take anyone else. Tying into that, we had her play this role to Ran, taking her in as a baby, and Maribel and Renko, taking the two in after a nuclear holocaust.
** Later on, we have Ran and Ren playing with role to Marisa, leading to an instance of [[InterspeciesAdoption Interspecies]] and ObliviousAdoption. Before that, Ran took in Chen.
** ''Foundling'' (a branch off), Ran and her husband, Ren, reprise this role to Reimu, the titular foundling. Later on, she comes to acknowledge them (along with Yukari) as parental figures.
--->'''Yukari''' (narrating): Naturally, they became "An" and "En", in much the same vein that a child's parents would become "Haha" and "Chichi", thus to some extent, she acknowledged them as parental figures or something very similar.[...]She sat silent before me, as if in some thought, before she finally opted to place a name for me. "Fukona-ha" was the name for me.
* ''Fanfic/GhostsOfEvangelion'': Misato took Shinji and Asuka in when they were teenagers, and helped them raise their daughter.
* ''Fanfic/GinnyWeasleyDoubleLife'': Not shown directly, but Milikan’s flashbacks reveal that she took on a parental role for one of her past servants while the girl’s parents were on holiday and her only guardians were an aunt and uncle who occasionally visited. Milikan’s influence compelled the girl to become less of a rebellious brat, lose some weight and be more polite to her parents even after Milikan left.
* ''Fanfic/GleeReprise'': Rachel's trying to be this for Beth following the accident that put Shelby into a coma, but Beth's not having any of it.
* ''Fanfic/GodsAngelsAndKings'' -- ''Hail To The King'': When Shinji was unable to synch with Unit 01 Misato decided to take him in, and she also became Asuka's guardian when she arrived to Tokyo-3.
* ''Fanfic/{{HERZ}}'': Misato has looked after Shinji and Asuka since they were young (although Asuka moved out after the battle of 2015) and even after so many years she sees and Rei as the children she never had.
* ''Fanfic/HigherLearning'': Misato was Shinji and Asuka's surrogate guardian. During a heated arguemtn with other character she blurts out she cares more about her kids than about NERV or anything else.
* ''Fanfic/HogyokuExMachina'': Isshin feels this way about Ichigo's relationship with [[EmpathicWeapon Zangetsu]]. He asks Yoruichi to describe Zangetsu to him leading to this.
--> "The soul of a fifteen-year-old formed itself a partner according to its own needs and desires, Yoruichi. And when it did…" his voice broke a little "… when it made the being it wanted to fight with for its entire existence… it made a middle-aged man. A teacher. A mentor. Stern and unrelenting, and so damn proud of him it hurts to watch." Everything Isshin had never shown Ichigo he could be. Yoruichi began to understand.
* ''Fanfic/IchLiebeDich'' (''Franchise/BackToTheFuture''): Marty tells Doc that back in 1985, he's more of a father figure to him than George is.
* ''[[https://www.fanfiction.net/s/12014713/1/It-Takes-a-Village It Takes a Village]]'' (''Manga/{{Bleach}}''): The Visored become this for Orihime after Hollows killed her family. Kensei in particular is her most prominent father figure.
* ''WebVideo/KamenRiderExAidTheAbridgedSeries'': Nico makes it very clear that Taiga is this to her, calling him 'dad' and in general attaching herself to him. Episode 11 reveals that [[spoiler:she considers Taiga the only family she has, and begs him not to die, least she has to go back to her real parents]].
* ''Fanfic/KaraOfRokyn'': Kal was like a father to Kara back when she was a just-orphaned teenager.
-->'''Kara:''' From my fifteenth year on up to... somewhen... Kal was like a parent. Or he thought he was. I’ve told him about this, probably haven’t told you. Sheol, back then I needed a parent, or a big brother, or whatever. I thought my mom and dad were dead, and I hadn’t been adopted. I cried, Nar. Cried a lot. But Kal was always there for me, always buoying me up, always guiding me on a path he thought was best for me.
* ''Fanfic/KiryuuinChronicles'': Rei plays this role with Satsuki, Ryuuko, and Nui and has been doing so since birth, raising them more than their parents do. Of course, she does have a reason to be, considering how their parents are.
* ''Fanfic/LastChildOfKrypton'': When Shinji told Misato he had to go back to his uncle’s house again without ever talking with his father she insisted he could stay with her. Shortly after she also took Asuka in when she arrived. Misato was the first adult wanted to take care of both kids in one decade. A while later, when Shinji decides to fight Gendo head-on, she joins him despite of Kaji's misgivings because she can not abandon her kids.
* ''[[https://www.deviantart.com/slifofinadragon/art/Let-s-Endless-Party-Ch-2-Pt-1-736910667 Let's Endless Party!]]'', by [[https://www.deviantart.com/slifofinadragon SilfofinaDragon]] (''VideoGame/SengokuBasara''): In chapter 2 part 1: Maeda Keiji and [[spoiler:UsefulNotes/DateMasamune and [[MisterSeahorse Sanada Yukimura]]'s son Masa's ex-SplitPersonality Sei, now in a body from a potion brewed by [[HotWitch Kyogoku Maria]],]] take in a one month old baby boy [[spoiler:who they [[DeadGuyJunior name after]] Masa's [[PosthumousCharacter late boyfriend]] Oyamada Nobushige]].
* ''Fanfic/LettingGoOfHate'': Vitani begins turning to her mother-in-law Nala as a mother figure. She had a loveless childhood being raised as a TykeBomb in a merciless environment, so Nala's motherly nature resonates with her.
* ''[[https://www.fanfiction.net/s/13580152/1/ Like a Mom to Me]]'': Misty openly tells Delia Ketchum that she views her as a surrogate mother figure, given that her biological mother died when she was too little, and her father works abroad and rarely comes home, so she was mostly raised by her sisters.
* ''Fanfic/LinkedInLifeAndLove'': Roman Torchwick has been taking care of Neo since she was twelve, making sure to teach her how to take care of herself and always sliding her enough jobs that she had money to spare. [[spoiler:Eventually, Roman reveals that on their first job, when Neo got caught and he had to bail her out, he told the cops he was her father. She knew that, but what she didn't know was that rather than forging the adoption paperwork, it was faster for him to just fill out real adoption paperwork and then bribe a clerk to backdate it a few years. Which means Neo is legally Neo Rose, cousin to Yang and Ruby]].
* ''Fanfic/AManOfIron'' plays with the trope: Antony and his wife Pepper have basically adopted Jon Snow, but they consider themselves more as a CoolUncle and CoolBigSis to the youth. Nonetheless, their behaviour is very much supportive and loving parenting when you look at it.

* ''Fanfic/MarieDSuesseAndTheMysteryNewPirateAge'': Toward the end, it is revealed that a woman named Denise was this to [[spoiler:Madelyn]], taking her in, giving her a job, and through being tough but fair, helping to make her a better person, inspiring her so much that [[spoiler:she gave Denise's name to her daughter as her middle name]].
* ''[[https://www.fanfiction.net/s/13537494/1/Memories-of-an-Angel Memories of an Angel]]'' (''Anime/AngelBeats''): Otonashi meets a young Noda [[spoiler:during the train accident that would end the former's life]]. After learning about the boy's abusive father, Otonashi wanted to adopt Noda so he and Kanade can give him a happier life. Even in the afterlife, Noda still had great admiration for the doctor-in-training. [[spoiler: Unfortunately, Otonashi's death and Kanade's fall into grief afterwards prevent this from occurring]].
* ''[[https://www.fanfiction.net/s/12986165/3/A-Monster-s-Marriage A Monster's Marriage]]'': Oddly, Juane Arc acts as one to [[TheSociopath Mercury Black]] despite only being a couple years older at most. Since Jaune is married to Cinder, Mercury had to interact with him regularly and he eventually realized he wanted someone like Jaune to be his dad, especially after reflecting on how supportive Jaune was of his (fake) breakdancing hobby, even signing him up for a competition and cheering him on. In a later chapter, Mercury distracts Jaune for Cinder by playing catch.
** To a lesser extent, Jaune is one for Emerald as well, having given her a birthday after learning she didn't know her own.
** The epilogue further drives it home with Jaune running a clothing store with Mercury named "Arc and Son's".
* ''Webcomic/MotherlyScootaloo'' has Scootaloo under the care of an earth pony mare named Sandy Hooves, a friend of her mother's before she passed away. While their relationship is very strained, especially from the beginning, they do genuinely love each other.
* ''Fanfic/{{Mudsnake}}'': Hermione resonates with Snape and the two end up bonding. The story even ends with Snape [[spoiler:becoming Hermione's guardian]].
* ''Fanfic/MyBravePonyStarfleetMagic'': The Grand Ruler is this for Lightning Dawn. Not that [[TheyWastedAPerfectlyGoodPlot their relationship has any significance on the overall plot]].
* ''Fanfic/NeonGenesisEvangelionGenocide'': Misato is Shinji and Asuka's caretaker. Although she failed them in the past, she wants sincerely to take care of them and protect them, not matter what.

* ''Fanfic/NobodyDies'': Yui and Gendo sent Shinji away because several eldritch abominations on the basement wanted to eat him (don't ask). When they summoned him back, Misato became his guardian. She also became Asuka's caretaker when the Sohryu family arrived on Tokyo-3. After considering she had ruined her daughter's life utterly Kyoko thought it would be for the best if Misato adopted Asuka, but Misato talked her out of it.
* ''Fanfic/NotAsSimpleAsAHappyEnding'': Gaster acts as a mentor and parental figure to [[Characters/UndertaleSans Sans]].
* ''Fanfic/TheNuptialverse'': Throughout the story ''Families'', Spike, Scootaloo, and Pinkie Pie all experience a form of this.
** Spike wrestles with seeing Twilight Sparkle as a mother figure. He's afraid to say it out loud to Twilight but once it's acknowledged openly, Twilight happily accepts Spike's feelings and even formally adopts him.
** While Rainbow Dash starts out as a CoolBigSis to Scootaloo as in canon, Rainbow Dash takes her in following Scootaloo's AbusiveParents being arrested. In ''The Visit'', after confronting her biological parents in prison, Scootaloo begins referring to Rainbow Dash as "Mom" and Soarin' as "Dad".
** Pinkie Pie was essentially disowned by her family following her getting her Cutie Mark. Their rejection of her mark prompted her to run away from home, where she was eventually adopted by the Cakes. Pinkie regards the Cakes as parents as much as she does her biological family.
* ''Fanfic/{{Obsession}}'': Asaph is the mentor to [[Anime/Pokemon2000 Jirarudan]] and Veronica, and is more present in their lives than their real parents.
* "[[https://www.fanfiction.net/s/7176396/1/Of-Finding-Innocence Of Finding Innocence]]" (''Series/{{Castle}}''): While the main focus is Kate Beckett forming a relationship with Richard Castle while she's still an officer and he's writing Derrick Storm, equal importance is given to Kate's developing role as Alexis's second mother figure. While Alexis never forgets that Meredith is her biological mother, Kate is an important maternal influence in Alexis's life when Meredith just 'forgets' to be there for her daughter, with the seven-year-old Alexis eventually calling Kate 'Momma' to distinguish her from Meredith (although by her teens she has settled into calling Kate 'Mom').
* ''Fanfic/OnceMoreWithFeeling'':

* ''Fanfic/OnceUponASupernaturalTime'': Dean Winchester swiftly ends up becoming this to Henry Mills as his relationship with Emma develops, to [[spoiler:the extent that, after Henry meets his real father for the first time, Henry explicitly states that he wishes that ''Dean'' was his father]].
* ''Fanfic/TheOneILoveIs'': Misato took Shinji and Asuka in when they were summoned to Tokyo-3. Shinji also looks up to Kaji and often goes to him for help, advice or counseling. Several times He has wished that Kaji was his real father.
* ''[[https://www.fanfiction.net/s/11032690/1/Pareidolia Pareidolia]]'': The fusion of [[ItMakesSenseInContext Naruto and Genkuro]] becomes the father figure for Tayuya in the alternate timeline. What makes it odd is that in the original timeline they had been lovers; Naruto worries for a bit whether he'll be able to keep the two separate.
* ''Webcomic/Persona5AdultConfidantAU'': In an inverse of canon, [[AgeLift Futaba is the adoptive mother for Sojiro]]. While they bicker occasionally, it's clear the two care for each other, [[spoiler:enough that Sojiro is against stealing her heart out of fear of her becoming a soulless husk as the previous Palace rulers have]].
* ''Fanfic/ThePiecesLieWhereTheyFell'': Page Turner is a ward of the Great Library and was raised by its matron, the griffon Hush Tone, whom she says is like a mother to her.
* ''Fanfic/PokemonTheGreatAdventure'': Ash gets one in the shape of Silver, a mysterious tailed man with silver hairs that raises him like his own son and teaches him everything he knows. Even after learning the truth about his legacy, the man is still the only one Ash calls "Father".
* ''Fanfic/ThePrincessWhoCarriesTheBloodOfTheGoddess'': After Zelda's mother died, she was basically raised by Urbosa, her mother's oldest friend. She certainly did a better job of it than the King. Urbosa was known as the only person who could get away with yelling at the King, and those usually ended with Urbosa accompanying Zelda on long journeys far away from the King. Even before Zelda regains her memories of Urbosa, she is perfectly fluent in Gerudo and feels an instinctive connection with the Gerudo Desert. [[spoiler:A scene from Urbosa's point of view has her think of Zelda as "''our daughter''," implying a more intimate relationship with the Queen than Zelda ever knew about]].
* ''Fanfic/PrincipalCelestiaHuntsTheUndead'': Celestia basically adopts Sunset the second she realizes that Sunset is homeless. Despite her protests that she's just looking out for a student, she lets her live with her, packs her lunches, and makes sure she is properly punished when she does something wrong. ''Everyone'' lampshades it.
--->'''Harshwhinny:''' ''[to Dash and Sunset]'' I am contacting your parents and informing them of the incident.\\
'''Sunset:''' I don't have any parents.\\
'''Harshwhinny:''' That is a fiction I see no reason to indulge.
* ''[[https://www.fanfiction.net/s/5463870/1/Property-Of Property Of]]'' (Film/TransformersFilmSeries): When Annabelle Lennox is taken to Cybertron as part of a twisted 'pet trade' set up by a group of Decepticons, she is purchased by Ironhide. While most Cybertronians are unaware that humans are sentient and humans believing that they all know about the trade in full, when Sam and Mikaela (who have been purchased by Bumblebee) are brought to Ironhide's place of residence to try and calm Annabelle, they calm Annabelle by convincing her that Ironhide sees himself as her father figure, with Ironhide becoming fond of 'Softspark' even before he learns that humans are sentient.
* ''Fanfic/QueenOfAllOni'' (''WesternAnimation/JackieChanAdventures''): Uncle notes that, even if Jackie and Jade aren't aware of it themselves, Jackie loves Jade to the point that he essentially ''is'' her parent in every way except blood. Given that Jade herself suffered ParentalNeglect so severe it bordered on [[AbusiveParents abuse]], she on some level does see Jackie as her true father figure. To the point that the [[AnthropomorphicPersonification Aspect]] of her mind known as "Father" looks just like him.
* ''Fanfic/RainbowDoubleDashsLunaverse'':
** Trixie and Princess Luna, though unlike Twilight Sparkle and Celestia theirs is more of a parent and rebellious teenager relationship (complete with Trixie beginning the series acting out to get back at Luna). Doesn't mean they don't care about one another though - Luna utterly panics when she thinks Trixie has possibly been killed.
** The non-continuity fic ''Nightmares Yet to Come'' has Thesis and Midnight. Thesis being a child created by magical mishap involving Trixie and Twilight, and she considers them the closest thing she has to mothers, but it's Midnight who is her legal guardian, claiming she is her sister (Thesis being too young to catch on to how much this is blatant BS). That said, [[spoiler:it's shown Midnight is involved with the ponies who caused the incident that created Thesis, so her actual relation to the kid could be closer than Trixie or Thesis know.]]
* ''Fanfic/TheRavensPlan'':
** Osha became this to Rickon, something Catelyn notes with envy and despair. The first person he asked for upon [[PeggySue waking up]] was not his mother, but Osha. She very clearly returns the love.
** Davos is this to Shireen. For every decision where we get to see his thought process, the first thing he considers is how this decision will effect her, and his care for her is strong enough to stay his hand from [[spoiler:ordering Qyburn's execution after he offers to treat her greyscale scars]]. For her part, Shireen essentially disowned her father after what he did to her and clearly cares for Davos too.
* ''Manga/ReTake'': Misato to Shinji and Asuka, even though [[spoiler:Asuka left Japan at the end of the history.]] She took care of them and even encouraged Shinji to be happy.
* ''Fanfic/RiseOfTheDragonChild'' has Jarl Balgruuf offering a home to thirteen-year-old orphan Harry and ensuring his safety, Dragonborness and prophecy be damned. Harry very much appreciates, calling Balgruuf daddy in his sleep.
* ''Fanfic/{{SAPR}}'': In addition to Klein Sieben from canon ''WebAnimation/{{RWBY}}'', Weiss also was raised by her maid Laberna Seacole. Mrs. Seacole, as it turns out, is a raccoon faunus, and when the White Fang became exceedingly violent Jacques fired her. She and her family were forced into poverty after that, and the stress and poor living conditions aged her by decades and gave her numerous health problems.
* ''Fanfic/ScarTissue'': After Third Impact Misato returned to the real world because her wards Shinji and Asuka needed her. As far as she is concerned, they are now her children, not her biological mothers'.
* ''Fanfic/TheSecondTry'': Misato had been Asuka's caretaker in Germany and later Kaji replaced her. Later Misato was both Shinji and Asuka's guardian. In the AfterTheEnd episodes Asuka tells Shinji how her guardians had constantly changed back in her homeland.

* ''Fanfic/ShardsOfAMemory'':
** Having never really known her own mother, April has come to see Shard as a mother too, even calling her ''kaasan''[[labelnote:translation]][[GratuitousJapanese Japanese]] for "mother", only addressed to one's mother directly[[/labelnote]].
** This also applies to Casey Jones when he discovers that she was the mysterious lady that saved him from a group of bullies when he was younger.
* ''[[https://www.fanfiction.net/s/13141582/6/Sora-and-the-Princess-of-Power Sora and the Princesses of Power]]'': Upon meeting Mermista, Goofy (''of all people!'') immediately starts to act like a parental figure towards her after figuring out that a [[GoodParents proper parent]] is something Mermista desperately needs.
* ''[[https://www.fanfiction.net/s/10264509/228/Tales-of-Fairies Tales of]] [[https://www.fanfiction.net/s/10264509/550/Tales-of-Fairies Fairies]]'': In these genderbend oneshots, Aquarius is one to [[GenderFlip Luca Heartfillia]], taking the role of a surrogant mother after his real mother's death and his father becoming distant. She is responsible for training him to use self-defense with his whip, and often disapproves of the girls that come near her "precious boy" like Natsu.
* ''Fanfic/ShinjiAndWarhammer40K'': After Shinji's arrival to NERV Misato took her in, even if she thought he was a weird kid. As things get crazier and crazier she also becomes Asuka's guardian, and Rei's for a while when Shinji was away.
* ''Fanfic/SophisticationAndBetrayal'': the protagonist's boss Pipe Wrench becomes something of a father figure to him. Pipe Wrench's wife similarly becomes something of a mother figure, and both provide advice on how to deal with various personal problems he encounters.
* ''Fanfic/SOE2LoneHeirOfKrypton'': When Asuka arrived to Japan she thought Misato was replacing Shinji with her, but to her surprise Misato took him and her in. Formerly her guardian had been Kaji.
* ''Fanfic/{{Survivors}}'' (''Series/Supergirl2015''): Eliza and Jeremiah Danvers find [[ComicBook/{{Supergirl}} Kara]] and [[Franchise/{{Superman}} baby Kal]] and become their new parents.
* ''Fanfic/TheTaleOfNagatoUzumaki'': The (now adult) Ame Orphans become this to Naruto after his parents' deaths.
* ''[[https://www.fanfiction.net/s/10868124/1/Team-Dad-Assemble Team Dad Assemble!]]'' (''Anime/PokemonTheSeries''): Archie and Maxie have [[HeelFaceTurn put aside their villainous ways]], merged their teams, and become a couple, as well as surrogate fathers to Brendan and May, who now live with them. When May's father Norman skips out on their annual father-daughter picnic due to an important evaluation at the Petalburg Gym, leaving her crushed, Archie and Maxie decide to go with her to the event as honorary dads for the day to cheer her up.
* ''Fanfic/TheirBond'':
** Zelda's mother died [[DeathByChildbirth in childbirth]]. Impa was the closest thing Zelda had to a mother growing up. However, their relationship becomes [[WifeHusbandry less platonic and more romantic]] once Zelda begins to enter adulthood.
** Link was all-but AdoptedIntoRoyalty as Zelda's brother, but he views Zelda's advisor Mikal as his father.
* ''Fanfic/ThousandShinji'': When Misato decided to take Shinji in, he initially resisted. However, he quickly -- and reluctantly -- bonded with her because she was the only person had treated him like a son after his mother's death. Later he tells Asuka -- who had also become Misato's ward -- that despite all her human flaws Misato is the mother he missed during his childhood.
* ''Fanfic/ToHellAndBackArrowverse'': Slade Wilson and Shado Gulong served as this to Oliver Queen, Barry Allen, Kara Zor-El and Kal-El during their time on Lian Yu. [[spoiler:When Slade is reunited with the latter years after Shado's death, they return to this dynamic]].
* ''Fanfic/TheTwilightChild'': Played with when Princess Celestia admits she sees Twilight as a daughter, and Twilight points out she already has parents, whom she loves dearly. Doesn't mean she isn't touched, though.
* ''Fanfic/UndertaleFanNovelization'': Frisk takes to Toriel as a mother-figure, though it takes a while for the child to acknowledge the fact. When Toriel calls to check in after leaving on her own, Frisk says "Bye mom", only to immediately backpedal. Even Frisk isn't entirely sure what prompted that.

* ''Fanfic/TheWitchOfTheEverfree'': Celestia was a parental substitute for Sunset before their fight, but she didn't directly acknowledge it, leading Sunset to become [[GreenEyedMonster jealous of Cadance]] for Celestia having officially adopted her. [[spoiler: After their reconciliation, Celestia starts actually calling Sunset her daughter.]]

* ''Fanfic/AdviceAndTrust'': Misato is this to Shinji and Asuka. She takes care after them and even tries to encourage them to get together... having no idea that they hooked up with each other when she was not looking.
* ''Fanfic/AnotherChronicle'' shows that Dromarch has a very parental bond with Nia. He's her most constant companion, treating her with a caring and protective attitude, and she generally turns to him for guidance and emotional support.
* ''Fanfic/BaitAndSwitchSTO'': Lieutenant Commander Reshek Gaarra's mother [[MissingMom died when he was two]], and his father was an officer in the Bajoran Militia's local garrison and had to go out on maneuvers a week out of every month. He was raised by his father and his paternal aunt Nefris.
* ''Fanfic/BlueMoon'': Giles recalls his own bond with Buffy when reading about Francesca, a vampire slayer who was captured, turned and killed by the Volturi, as the diaries of Francesca's Watcher, Sir Richard Gladwin, make it clear that he had a similar relationship with Francesca to Giles's bond with Buffy. [[spoiler:Francesca clearly reciprocated this affection; even after she faked her death to escape the Volturi, when she learned that Sir Gladwin was dying, she went to see him despite the risk so that she could assure him that she had survived and was happy]].
* ''Fanfic/TheBoyWithoutAFairy'' (a darker retelling of the ''Videogame/TheLegendOfZeldaOcarinaOfTime''): Link sees Saria as this due to her being the most involved in raising him as a baby. As the story progresses he begins to see Navi as this too much to her guilt.
* ''Fanfic/TheBridge'': This happens on both sides of the crossover.

* ''Fanfic/TheChildOfLove'': A while after Asuka got ditched by her father and step-mother Misato became her guardian, and later Kaji. When Shinji arrived on Tokyo-3, Misato became his guardian and then she took Asuka in again. Both Misato and Kaji are the only reliable adult role models both teenagers have, and the only people really looked after them after their families abandoned them.

* ''Fanfic/ChildOfTheStorm'': Several examples:

* ''Fanfic/ChildrenOfRemnant'': Winter reveals that after her mother's death, it was Kali who stepped in to comfort her and help fill the gap that Willow's death left behind. As a result, Winter has complete trust in her abilities and intelligence.
* ''Fanfic/CodePrime'': While subtle at first, later chapters in the story indicate that Lelouch is starting to view Optimus as a father figure since his real father is a...less than stellar parent. Mao's remarks in Chapter 19 outright confirms that Lelouch views Optimus as his surrogate father.

* ''Fanfic/TheDearSweetieBelleContinuity'': In ''Dear Scootaloo'', Rainbow Dash was raised more or less personally by Firefly, former Wonderbolt and founder of the Cloudsdale Home for Wayward Pegasi, and as far as she's concerned Firefly ''was'' her mother.
* ''Fanfic/DeliverUsFromEvilSeries'': In ''Mortality'', Holmes's parents are never mentioned, so most likely Holmes sees his friend Watson as this.
* ''Fanfic/TheDifferentverse'': Derpy Hooves is this for Scootaloo, having raised her since she was a year old, though Scoots’ mother does drop in from time to time. Twilight is also this to Spike, whose biological parents are unknown.
* ''Fanfic/ADiplomaticVisit'': Discussed in chapter 15.

* ''[[https://www.fanfiction.net/s/13034223/21/A-Discordant-Note A Discordant Note]]'': Played straight and downplayed. Harry is [[ItMakesSenseInContext dead and killing a god]] for most of the time Tyrion Lannister is being fostered at Dol Guldur, but he still finds himself respecting the sorcerer more than his own father. Meanwhile, Harry's wife Luna very much acts the part of a doting mother for Tyrion ([[TeamMom as well as pretty much everyone younger than her in Angmar]]).
* ''Fanfic/DoingItRightThisTime'': When Shinji and Asuka arrive to Tokyo-3 Misato takes them in... and shortly after they insist on she taking Rei in, too. When she asks Asuka what is going on, they explain that they were time travelers, and she had been her and Shinji's caretaker in the original timeline (and Rei did no longer want to be under Gendo's legal guardianship). After their explanations Misato agrees to be Rei's guardian, too.
* ''WebVideo/DragonBallZAbridged'' plays with this, regarding the relationship between Piccolo and Gohan. It's downplayed in the beginning, as Piccolo's initial motive for kidnapping and training Gohan was for his own plans to take over the world. It actually moves closer to the source material after Namek, as both Goku and Piccolo train Gohan for the Androids. Both Gohan ''and'' Piccolo resent Goku's inattentiveness as a father. But Piccolo having this role seems to be closer to being an outward perception than a reality. And when Cell lampshades it in Episode 60, Piccolo and Goku both bristle at the idea, as the creators' attempt to kill the joke in the end.
* ''Fanfic/TheDragonThatWillPierceTheHeavens'': Protagonist Hikari becomes this for Tony-Tony Chopper starting in the Drum Island Arc, being a maternal figure for the young reindeer and proving extremely protective of him.

* ''Fanfic/EscapeFromTheMoon'': In the sequel ''The Mare From the Moon'', per canon, Twilight is this to Spike, but it’s made more visible as Twilight actually refers to him as her son here, ''especially'' when Spliced starts calling her out on [[spoiler: her inadvertent stunting of his growth]].

* In [[https://www.fanfiction.net/s/13071232/1/A-Nightmare-on-Steven-Street-Prequel the prequel]] to [[https://www.fanfiction.net/s/13069418/1/A-Nightmare-on-Steven-Street this crossover of Steven Universe and Nightmare On Elm Street]], little Freddy Krueger comes to view Rose Quartz as this.
* In ''ComicBook/PowerGirl'' fanfic ''Fanfic/AForceOfFour'', Superman tried to be a father to his cousin, but Kara couldn't accept a surrogate.
-->'''Power Girl:''' We both cared about each other. We were both glad that we weren't the only Kryptonians left alive, when we found each other. But he wanted to play Daddy, because he'd never had a child. And I... couldn't do that, Jimmy. I had a daddy, and it wasn't Kal.
* In ''Series/Supergirl2015'' fic ''Fanfic/{{Survivors}}'', Eliza and Jeremiah Danvers find [[ComicBook/{{Supergirl}} Kara]] and [[Franchise/{{Superman}} baby Kal]] and become their new parents.
* Misato is this for Shinji and Asuka, as in ''Anime/NeonGenesisEvangelion'' canon, in '''''MANY''''' fics. Sometimes, that role extends to other characters as well.
** ''Fanfic/ACrownOfStars'': Misato was Shinji and Asuka's guardian and caretaker during the Angel War, at the end of the which she got killed. During the story Daniel brought her back, and she dedicated herself to fight to rebuild the post-Third Impact world as a way to atone for neglecting her wards during the War. During a conversation with Asuka she admits she was the closest thing they had to a parent, she screwed, and she is awfully sorry about it.
** ''Fanfic/AdviceAndTrust'': Misato is this to Shinji and Asuka. She takes care after them and even tries to encourage them to get together... having no idea that they hooked up with each other when she was not looking.
** ''Fanfic/TheChildOfLove'': A while after Asuka got ditched by her father and step-mother Misato became her guardian, and later Kaji. When Shinji arrived on Tokyo-3, Misato became his guardian and then she took Asuka in again. Both Misato and Kaji are the only reliable adult role models both teenagers have, and the only people really looked after them after their families abandoned them.
** ''[[Fanfic/GodsAngelsAndKings Hail To The King]]'': When Shinji was unable to synch with Unit 01 Misato decided to take him in, and she also became Asuka's guardian when she arrived to Tokyo-3.
** ''Fanfic/GhostsOfEvangelion'': Misato took Shinji and Asuka in when they were teenagers, and helped them raise their daughter.
** ''Fanfic/{{HERZ}}'': Misato has looked after Shinji and Asuka since they were young (although Asuka moved out after the battle of 2015) and even after so many years she sees and Rei as the children she never had.
** ''Fanfic/HigherLearning'': Misato was Shinji and Asuka's surrogate guardian. During a heated arguemtn with other character she blurts out she cares more about her kids than about NERV or anything else.
** ''Fanfic/ChildrenOfAnElderGod'':
*** When Shinji arrived to Tokyo-3 Misato took him in and took care of him.
*** After her parents died, Asuka was adopted by Dr. Himmelfarb. Her foster mother took care of her and mentored her for many years. Later Kaji became her guardian, and when the war began, Misato took her in together with Shinji.
*** After the end of the war [[spoiler:Shinji, Asuka, Touji and Hikari have lost their respective families.]] Misato insists on becoming the surrogate mother of the four teenagers. When they warn her that other people will give her grief about it, Misato retorts she does not give a damn.
** ''Fanfic/DoingItRightThisTime'': When Shinji and Asuka arrive to Tokyo-3 Misato takes them in... and shortly after they insist on she taking Rei in, too. When she asks Asuka what is going on, they explain that they were time-travellers, and she had been her and Shinji's caretaker in the original timeline (and Rei did no longer want to be under Gendo's legal guardianship). After their explanations Misato agrees to be Rei's guardian, too.
** ''Manga/Evangelion303'': Ritsuko took care of Shinji for a short while when his father sent him away after his mother's death. However Ritsuko seemed to be always with his father, and Shinji did not like her very much. When the story starts he is twenty and he has been used to take care of himself for a long time.
** ''Fanfic/NeonGenesisEvangelionGenocide'': Misato is Shinji and Asuka's caretaker. Although she failed them in the past, she wants sincerely to take care of them and protect them, not matter what.
** ''Fanfic/NobodyDies'': Yui and Gendo sent Shinji away because several eldritch abominations on the basement wanted to eat him (don't ask). When they summoned him back, Misato became his guardian. She also became Asuka's caretaker when the Sohryu family arrived on Tokyo-3. After considering she had ruined her daughter's life utterly Kyoko thought it would be for the best if Misato adopted Asuka, but Misato talked her out of it.
** ''Fanfic/OnceMoreWithFeeling'':
*** After returning to the past Shinji hopes Misato becomes his guardian again. She does not disappoint. Later he says to the face of [[spoiler:SEELE]] Misato was the only person had looked after him, unlike his so-called biological family.
*** Misato was also Asuka's guardian in Germany. Asuka felt she was the first person since her mother's death had genuinely cared about her. Later, when she nearly died while she was fighting into a volcano, Asuka felt betrayed because Misato seemed more concerned about destroying the enemy than about her safety, but Misato acknowledged she had acted wrongly, explained her actions, apologized and reassured her than she cared about her and Shinji.
** ''Fanfic/TheOneILoveIs'': Misato took Shinji and Asuka in when they were summoned to Tokyo-3. Shinji also looks up to Kaji and often goes to him for help, advice or counseling. Several times He has wished that Kaji was his real father.
** ''Fanfic/LastChildOfKrypton'': When Shinji told Misato he had to go back to his uncle’s house again without ever talking with his father she insisted he could stay with her. Shortly after she also took Asuka in when she arrived. Misato was the first adult wanted to take care of both kids in one decade. A while later, when Shinji decides to fight Gendo head-on, she joins him despite of Kaji's misgivings because she can not abandon her kids.
** ''Manga/ReTake'': Misato to Shinji and Asuka, even though [[spoiler:Asuka left Japan at the end of the history.]] She took care of them and even encouraged Shinji to be happy.
** ''Fanfic/ScarTissue'': After Third Impact Misato returned to the real world because her wards Shinji and Asuka needed her. As far as she is concerned, they are now her children, not her biological mothers'.
** ''Fanfic/TheSecondTry'': Misato had been Asuka's caretaker in Germany and later Kaji replaced her. Later Misato was both Shinji and Asuka's guardian. In the AfterTheEnd episodes Asuka tells Shinji how her guardians had constantly changed back in her homeland.
--->''"After my mother died, I was practically raised by NERV. Despite living with them, my father never really cared much about me, and my stepmother was 'almost afraid of me', as she said it. So I was mostly in custody by someone from NERV; send from one guardian to another. But those were the same; only when I got good grades or even more so when I was good in training, I got praise. Even Misato wasn't much better..."''\\
''"Misato?"''\\
''"Yes, don't you remember? She had been my guardian awhile once before. Looking back, I'd say she most likely still had her own problems dwelling on her mind, but I guess it were those differences between her behavior then and when I came here that made me think she preferred you." Shinji nodded understanding, but didn't interrupt her.''
** ''Fanfic/ShinjiAndWarhammer40K'': After Shinji's arrival to NERV Misato took her in, even if she thought he was a weird kid. As things get crazier and crazier she also becomes Asuka's guardian, and Rei's for a while when Shinji was away.
** ''Fanfic/SOE2LoneHeirOfKrypton'': When Asuka arrived to Japan she thought Misato was replacing Shinji with her, but to her surprise Misato took him and her in. Formerly her guardian had been Kaji.
** ''Fanfic/ThousandShinji'': When Misato decided to take Shinji in, he initially resisted. However, he quickly -and reluctantly- bonded with her because she was the only person had treated him like a son after his mother's death. Later he tells Asuka -who had also become Misato's ward- that despite all her human flaws Misato is the mother he missed during his childhood.
* ''Fanfic/BaitAndSwitchSTO'': Lieutenant Commander Reshek Gaarra's mother [[MissingMom died when he was two]], and his father was an officer in the Bajoran Militia's local garrison and had to go out on maneuvers a week out of every month. He was raised by his father and his paternal aunt Nefris.
* In ''FanFic/HogyokuExMachina'', Isshin feels this way about Ichigo's relationship with [[EmpathicWeapon Zangetsu]]. He asks Yoruichi to describe Zangetsu to him leading to this.
--> "The soul of a fifteen-year-old formed itself a partner according to its own needs and desires, Yoruichi. And when it did…" his voice broke a little "… when it made the being it wanted to fight with for its entire existence… it made a middle-aged man. A teacher. A mentor. Stern and unrelenting, and so damn proud of him it hurts to watch." Everything Isshin had never shown Ichigo he could be. Yoruichi began to understand.
* In ''Fanfic/TheDragonThatWillPierceTheHeavens'', protagonist Hikari becomes this for Tony-Tony Chopper starting in the Drum Island Arc, being a maternal figure for the young reindeer and proving extremely protective of him.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic:''
** The Grand Ruler for Lightning Dawn in ''Fanfic/MyBravePonyStarfleetMagic''. Not that [[TheyWastedAPerfectlyGoodPlot their relationship has any significance on the overall plot]].
** In ''FanFic/SophisticationAndBetrayal'', the protagonist's boss Pipe Wrench becomes something of a father figure to him. Pipe Wrench's wife similarly becomes something of a mother figure, and both provide advice on how to deal with various personal problems he encounters.
** Played with in ''FanFic/TheTwilightChild'', when Princess Celestia admits she sees Twilight as a daughter, and Twilight points out she already has parents, whom she loves dearly. Doesn't mean she isn't touched, though.
** In ''[[Fanfic/TheDearSweetieBelleContinuity Dear Scootaloo]]'', Rainbow Dash was raised more or less personally by Firefly, former Wonderbolt and founder of the Cloudsdale Home for Wayward Pegasi, and as far as she's concerned Firefly ''was'' her mother.
** ''FanFic/TheDifferentverse'': Derpy Hooves is this for Scootaloo, having raised her since she was a year old, though Scoots’ mother does drop in from time to time. Twilight is also this to Spike, whose biological parents are unknown.

** In ''Fanfic/TheWitchOfTheEverfree'', Celestia was a parental substitute for Sunset before their fight, but she didn't directly acknowledge it, leading Sunset to become [[GreenEyedMonster jealous of Cadance]] for Celestia having officially adopted her. [[spoiler: After their reconciliation, Celestia starts actually calling Sunset her daughter.]]
** Throughout FanFic/TheNuptialverse story ''Families'', Spike, Scootaloo, and Pinkie Pie all experience a form of this.
*** Spike wrestles with seeing Twilight Sparkle as a mother figure. He's afraid to say it out loud to Twilight but once it's acknowledged openly, Twilight happily accepts Spike's feelings and even formally adopts him.
*** While Rainbow Dash starts out as a CoolBigSis to Scootaloo as in canon, Rainbow Dash takes her in following Scootaloo's AbusiveParents being arrested. In ''The Visit'', after confronting her biological parents in prison, Scootaloo begins referring to Rainbow Dash as "Mom" and Soarin' as "Dad".
*** Pinkie Pie was essentially disowned by her family following her getting her Cutie Mark. Their rejection of her mark prompted her to run away from home, where she was eventually adopted by the Cakes. Pinkie regards the Cakes as parents as much as she does her biological family.
** In ''Fanfic/TheBridge'' this happens on both sides of the crossover.
*** Princess Celestia and Princess Luna were raised by the Equestrian Founders, seeing Starswirl the Bearded especially as a father figure. Part of the reason Luna grew jealous of Celestia and turned into Nightmare Moon was she felt, incorrectly, that she was the UnFavorite in Starswirl's eyes.
*** Aria Blaze's mother, Hymnia, was one for her cousins Adagio Dazzle and Sonata Dusk. Their mother, Hymnia's sister, died shortly after Sonata was born and Adagio was still a baby. Hymnia was the one who taught them their song magic before she too passed away years later in a storm.
*** Dr. Azusa Aoki, formally Azusa Gojo, was this for Godzilla Junior's early years due to him imprinting on her when he hatched. When it became apparent Junior was sapient, the two saw each other as mother and son even after Junior grew to his titanic adult size. It's heavily implied her care is why he grew up wanting to protect others and turned him into Terra's BigGood.
** ''FanFic/ThePiecesLieWhereTheyFell'': Page Turner is a ward of the Great Library and was raised by its matron, the griffon Hush Tone, whom she says is like a mother to her.
** ''FanFic/EscapeFromTheMoon'': In the sequel ''The Mare From the Moon'', per canon, Twilight is this to Spike, but it’s made more visible as Twilight actually refers to him as her son here, ''especially'' when Spliced starts calling her out on [[spoiler: her inadvertent stunting of his growth]].
** ''Webcomic/MotherlyScootaloo'' has Scootaloo under the care of an earth pony mare named Sandy Hooves, a friend of her mother's before she passed away. While their relationship is very strained, especially from the beginning, they do genuinely love each other.
** The fic ''FanFic/FallingBackwards'' and its sequel ''Flying Forwards'', have rather sad variation on this trope. In it, Rainbow Dash receives brain damage after stunt gone wrong that leaves her mentally regressed to a child and ends up imprinting on Twilight as her mother. With no apparent way to fix her friend available, other than just shipping her off to a mental asylum and feeling guilty [[MyGreatestFailure over her failure to fully save her friend]], Twilight reluctantly takes Rainbow in and plays along with the whole "mommy" thing until a way to cure her can be found. [[spoiler: Ultimately no cure is found and with no other options available, Twilight [[FountainOfYouth physically regressing her to match her mental]], so she at least has a second chance at life and accepts her new role as Rainbow's mother.]]
** ''Fanfic/FalloutEquestria'': Watcher explains that when the war began, Princess Celestia worked hard to keep the Mane Six out of danger because she saw them as her children. After a massacre, Celestia stepped down and her sister Princess Luna took over. Luna saw the Mane Six as equals or even saviors, and recruited them to win the war however possible. [[WellIntentionedExtremist That's when everything started going really bad]].
** ''Fanfic/PrincipalCelestiaHuntsTheUndead'': Celestia basically adopts Sunset the second she realizes that Sunset is homeless. Despite her protests that she's just looking out for a student, she lets her live with her, packs her lunches, and makes sure she is properly punished when she does something wrong. ''Everyone'' lampshades it.
--->'''Harshwhinny:''' ''[to Dash and Sunset]'' I am contacting your parents and informing them of the incident.\\
'''Sunset:''' I don't have any parents.\\
'''Harshwhinny:''' That is a fiction I see no reason to indulge.
** ''Fanfic/EquestriaGirlsFriendshipSouls'':
*** [[DeconstructedTrope Deconstructed]] with Fluttershy and Posey. Due to the uncanny resemblance to her mother, both in looks and personality [[spoiler: and literally being her in previous life]] Posey can't help but seek love and approval from Fluttershy, desperately calling her mother. Fluttershy, while sympathetic, sees it as an unhealthy obsession and makes it clear that [[DefiedTrope she's not and never will be her mother.]] Still, she says she'll gladly call her a friend [[PositiveFriendInfluence and help her workout her issues.]]
*** Played straight with Tempest. It's made clear that Tempest Shadow is Yin and Yang's adopted mother in all but name.
* In ''Fanfic/FateStarryNight'', Ritsuka acts as Jack's "Mommy", trying to teach her right from wrong and limit her murderous impulses to monsters and Servants. He also cooks for her, praises her when she does well, and gives her all the affection she and the many other spirits that make up her form lacked in life.
* In ''Fanfic/MarieDSuesseAndTheMysteryNewPirateAge'', toward the end, it is revealed that a woman named Denise was this to [[spoiler:Madelyn]], taking her in, giving her a job, and through being tough but fair, helping to make her a better person, inspiring her so much that [[spoiler:she gave Denise's name to her daughter as her middle name]].
* Asaph in ''{{Fanfic/Obsession}}'' is the mentor to [[Anime/Pokemon2000 Jirarudan]] and Veronica, and is more present in their lives than their real parents.
* Not shown directly in ''Fanfic/GinnyWeasleyDoubleLife'', but Milikan’s flashbacks reveal that she took on a parental role for one of her past servants while the girl’s parents were on holiday and her only guardians were an aunt and uncle who occasionally visited. Milikan’s influence compelled the girl to become less of a rebellious brat, lose some weight and be more polite to her parents even after Milikan left.
* In ''Fanfic/PokemonTheGreatAdventure'', Ash gets one in the shape of Silver, a mysterious tailed man with silver hairs that raises him like his own son and teaches him everything he knows. Even after learning the truth about his legacy, the man is still the only one Ash calls "Father".
* In the ''WesternAnimation/JackieChanAdventures'' fanfiction ''Fanfic/QueenOfAllOni'', Uncle notes that, even if Jackie and Jade aren't aware of it themselves, Jackie loves Jade to the point that he essentially ''is'' her parent in every way except blood. Given that Jade herself suffered ParentalNeglect so severe it bordered on [[AbusiveParents abuse]], she on some level does see Jackie as her true father figure. To the point that the [[AnthropomorphicPersonification Aspect]] of her mind known as "Father" looks just like him.
* In ''Fanfic/BlueMoon'', Giles recalls his own bond with Buffy when reading about Francesca, a vampire slayer who was captured, turned and killed by the Volturi, as the diaries of Francesca's Watcher, Sir Richard Gladwin, make it clear that he had a similar relationship with Francesca to Giles's bond with Buffy. [[spoiler:Francesca clearly reciprocated this affection; even after she faked her death to escape the Volturi, when she learned that Sir Gladwin was dying, she went to see him despite the risk so that she could assure him that she had survived and was happy]].
* The ''Franchise/{{Godzilla}} Film/MonsterVerse'' fanfiction ''Fanfic/AbraxasHrodvitnon'' has several examples:

* In the Film/TransformersFilmSeries fic ''[[https://www.fanfiction.net/s/5463870/1/Property-Of Property Of]]'', when Annabelle Lennox is taken to Cybertron as part of a twisted 'pet trade' set up by a group of Decepticons, she is purchased by Ironhide. While most Cybertronians are unaware that humans are sentient and humans believing that they all know about the trade in full, when Sam and Mikaela (who have been purchased by Bumblebee) are brought to Ironhide's place of residence to try and calm Annabelle, they calm Annabelle by convincing her that Ironhide sees himself as her father figure, with Ironhide becoming fond of 'Softspark' even before he learns that humans are sentient.
* In the ''Series/{{Castle}}'' fic "[[https://www.fanfiction.net/s/7176396/1/Of-Finding-Innocence Of Finding Innocence]]", while the main focus is Kate Beckett forming a relationship with Richard Castle while she's still an officer and he's writing Derrick Storm, equal importance is given to Kate's developing role as Alexis's second mother figure. While Alexis never forgets that Meredith is her biological mother, Kate is an important maternal influence in Alexis's life when Meredith just 'forgets' to be there for her daughter, with the seven-year-old Alexis eventually calling Kate 'Momma' to distinguish her from Meredith (although by her teens she has settled into calling Kate 'Mom').
* In ''Fanfic/OnceUponASupernaturalTime'', Dean Winchester swiftly ends up becoming this to Henry Mills as his relationship with Emma develops, to [[spoiler:the extent that, after Henry meets his real father for the first time, Henry explicitly states that he wishes that ''Dean'' was his father]].
* In the ''Franchise/BackToTheFuture'' fanfic ''FanFic/IchLiebeDich'', Marty tells Doc that back in 1985, he's more of a father figure to him than George is.
* ''[[Fanfic/DeliverUsFromEvilSeries Mortality]]'': Holmes's parents are never mentioned, so most likely Holmes sees his friend Watson as this.
* ''Fanfic/EscapeFromTheHokagesHat'': Tsunade to all three of her students (Shizune, Naruto and Hinata). While Shizune is a fairly well adjusted adult, she spends most of her time helping Naruto and Hinata with their own personal issues.
* Rei plays this role in ''Fanfic/KiryuuinChronicles'' with Satsuki, Ryuuko, and Nui and has been doing so since birth, raising them more than their parents do. Of course, she does have a reason to be, considering how their parents are.
* In ''Fanfic/TheVow'' (a ''WesternAnimation/KungFuPanda'' fanfic), Lianne comes to hold in her heart Lord Goa and Lady Jing, Shen's kindly parents, like second parents. In particular, she regards Lord Goa a true father her biological father has [[ParentalNeglect never been able to be to her]].
* There are some ''Anime/FullmetalAlchemist'' fanfics that have Edward put in this role. Bonus points if he's the oldest child in an abusive or neglecting household who takes care of the kids more than the actual "parent" does. Many fics also put [[AFatherToHisMen Roy Mustang]] in this role for Ed and Al, sometimes adding Riza Hawkeye in as a mother figure as well.
* In ''Fanfic/UndertaleFanNovelization'', Frisk takes to Toriel as a mother-figure, though it takes a while for the child to acknowledge the fact. When Toriel calls to check in after leaving on her own, Frisk says "Bye mom", only to immediately backpedal. Even Frisk isn't entirely sure what prompted that.
* In ''Fanfic/TheTaleOfNagatoUzumaki'', the (now adult) Ame Orphans become this to Naruto after his parents' deaths.
* In ''[[https://www.fanfiction.net/s/11032690/1/Pareidolia Pareidolia]]'', the fusion of [[ItMakesSenseInContext Naruto and Genkuro]] becomes the father figure for Tayuya in the alternate timeline. What makes it odd is that in the original timeline they had been lovers; Naruto worries for a bit whether he'll be able to keep the two separate.
* ''Fanfic/AManOfIron'' plays with the trope: Antony and his wife Pepper have basically adopted Jon Snow, but they consider themselves more as a CoolUncle and CoolBigSis to the youth. Nonetheless, their behaviour is very much supportive and loving parenting when you look at it.
** Played more straight with Tyrion Lannister who finds himself saddled with Samwell Tarly as a squire and cheerfully decides the boy will do as a substitute son.
* In the ''Anime/PokemonTheSeries'' fanfic, ''Fanfic/CommonSense'', it's revealed that Misty's parents [[ParentalAbandonment abandoned the Gym]] when she was younger. With her older sisters being too busy and/or self-absorbed to look after her, the Pokémon of the Gym wound up looking after her with [[LikeBrotherAndSister Staryu and Goldeen]] playing with her and teaching her to swim while Starmie was the voice of reason growing up.
* ''FanFic/ForBetterOrForWorseOnePiece'': Thanks to being Corazon being SparedByTheAdaptation, he serves as this not only to Law, but also to Luffy, Ace, Sabo, and Bepo. Ironically, he's in complete denial over it, while everyone else (including the boys themselves) have acknowledged it.
* In the slice-of-life ''Anime/PokemonTheSeries'' fanfic ''[[https://www.fanfiction.net/s/10868124/1/Team-Dad-Assemble Team Dad Assemble!]],'' Archie and Maxie have [[HeelFaceTurn put aside their villainous ways,]] merged their teams, and become a couple, as well as surrogate fathers to Brendan and May, who now live with them. When May's father Norman skips out on their annual father-daughter picnic due to an important evaluation at the Petalburg Gym, leaving her crushed, Archie and Maxie decide to go with her to the event as honorary dads for the day to cheer her up.
* ''FanFic/ToHellAndBackArrowverse'': Slade Wilson and Shado Gulong served as this to Oliver Queen, Barry Allen, Kara Zor-El and Kal-El during their time on Lian Yu. [[spoiler:When Slade is reunited with the latter years after Shado's death, they return to this dynamic]].
* ''FanFic/ChildOfTheStorm,'' has several examples:

* Oddly, Jaune Arc in ''[[https://www.fanfiction.net/s/12986165/3/A-Monster-s-Marriage A Monster's Marriage]]'' acts as one to [[TheSociopath Mercury Black]] despite only being a couple years older at most. Since Jaune is married to Cinder, Mercury had to interact with him regularly and he eventually realized he wanted someone like Jaune to be his dad, especially after reflecting on how supportive Jaune was of his (fake) breakdancing hobby, even signing him up for a competition and cheering him on. In a later chapter, Mercury distracts Jaune for Cinder by playing catch.
** To a lesser extent, Jaune is one for Emerald as well, having given her a birthday after learning she didn't know her own.
** The epilogue further drives it home with Jaune running a clothing store with Mercury named "Arc and Son's".
* In ''FanFic/FadedBlue'', Blue Pearl acts as Steven's primary caregiver, and while she is as loyal to Steven as she was to Blue Diamond, she is treated more like a mother and friend than a servant.
* In ''Fanfic/KaraOfRokyn'', Kal was like a father to Kara back when she was a just-orphaned teenager.
-->'''Kara:''' From my fifteenth year on up to... somewhen... Kal was like a parent. Or he thought he was. I’ve told him about this, probably haven’t told you. Sheol, back then I needed a parent, or a big brother, or whatever. I thought my mom and dad were dead, and I hadn’t been adopted. I cried, Nar. Cried a lot. But Kal was always there for me, always buoying me up, always guiding me on a path he thought was best for me.
* In chapter 2 part 1 of [[https://www.deviantart.com/slifofinadragon SilfofinaDragon]]'s ''VideoGame/SengokuBasara'' fanfic ''[[https://www.deviantart.com/slifofinadragon/art/Let-s-Endless-Party-Ch-2-Pt-1-736910667 Let's Endless Party!]]'', Maeda Keiji and [[spoiler:UsefulNotes/DateMasamune and [[MisterSeahorse Sanada Yukimura]]'s son Masa's ex-SplitPersonality Sei, now in a body from a potion brewed by [[HotWitch Kyogoku Maria]],]] take in a one month old baby boy [[spoiler:who they [[DeadGuyJunior name after]] Masa's [[PosthumousCharacter late boyfriend]] Oyamada Nobushige]].

** We have this happens with Yukari and Reimu, the former being the latter's wet-nurse. However, this was played for slight drama, as, to be expected, Reimu was bonded to her and wouldn't take anyone else. Tying into that, we had her play this role to Ran, taking her in as a baby, and Maribel and Renko, taking the two in after a nuclear holocaust.

** In ''Foundling'' (a branch off), Ran and her husband, Ren, reprise this role to Reimu, the titular foundling. Later on, she comes to acknowledge them (along with Yukari) as parental figures.

* It's hard to find a ''VideoGame/KnightsOfTheOldRepublic'' fanfic where this trope ''isn't'' in play when it comes to Carth and Mission. Mission's a SatisfiedStreetRat who is either an orphan or abandoned by her parents, with her only known family being a deadbeat older brother. Carth lost his wife and son in a Sith attack, and his son would have been roughly Mission's age. [[spoiler: You later find he's alive, but training as a Sith.]] He's the only one in the party that speaks up about Mission's young age, and tries to take a protective role. So, it was an easy assumption for the fanbase to roll with.
* ''Fanfic/TheirBond'':
** Zelda's mother died [[DeathByChildbirth in childbirth]]. Impa was the closest thing Zelda had to a mother growing up. However, their relationship becomes [[WifeHusbandry less platonic and more romantic]] once Zelda begins to enter adulthood.
** Link was all-but AdoptedIntoRoyalty as Zelda's brother, but he views Zelda's advisor Mikal as his father.
* Naturally, ''WebVideo/DragonBallZAbridged'' plays with this, regarding the relationship between Piccolo and Gohan. It's downplayed in the beginning, as Piccolo's initial motive for kidnapping and training Gohan was for his own plans to take over the world. It actually moves closer to the source material after Namek, as both Goku and Piccolo train Gohan for the Androids. Both Gohan ''and'' Piccolo resent Goku's inattentiveness as a father. But Piccolo having this role seems to be closer to being an outward perception than a reality. And when Cell lampshades it in Episode 60, Piccolo and Goku both bristle at the idea, as the creators' attempt to kill the joke in the end.
* In ''WebVideo/KamenRiderExAidTheAbridgedSeries'', Nico makes it very clear that Taiga is this to her, calling him 'dad' and in general attaching herself to him. Episode 11 reveals that [[spoiler:she considers Taiga the only family she has, and begs him not to die, least she has to go back to her real parents]].
* In ''Fanfic/LettingGoOfHate'', Vitani begins turning to her mother-in-law Nala as a mother figure. She had a loveless childhood being raised as a TykeBomb in a merciless environment, so Nala's motherly nature resonates with her.
* In ''Fanfic/TheBoyWithoutAFairy'', a darker retelling of the ''Videogame/TheLegendOfZeldaOcarinaOfTime'', Link sees Saria as this due to her being the most involved in raising him as a baby. As the story progresses he begins to see Navi as this too much to her guilt.
* ''FanFic/TheRavensPlan'':
** Osha became this to Rickon, something Catelyn notes with envy and despair. The first person he asked for upon [[PeggySue waking up]] was not his mother, but Osha. She very clearly returns the love.
** Davos is this to Shireen. For every decision where we get to see his thought process, the first thing he considers is how this decision will effect her, and his care for her is strong enough to stay his hand from [[spoiler:ordering Qyburn's execution after he offers to treat her greyscale scars]]. For her part, Shireen essentially disowned her father after what he did to her and clearly cares for Davos too.

* ''FanFic/AnotherChronicle'' shows that Dromarch has a very parental bond with Nia. He's her most constant companion, treating her with a caring and protective attitude, and she generally turns to him for guidance and emotional support.
* ''Fanfic/{{SAPR}}'': In addition to Klein Sieben from canon ''WebAnimation/{{RWBY}}'', Weiss also was raised by her maid Laberna Seacole. Mrs. Seacole, as it turns out, is a raccoon faunus, and when the White Fang became exceedingly violent Jacques fired her. She and her family were forced into poverty after that, and the stress and poor living conditions aged her by decades and gave her numerous health problems.
* ''Fanfic/ADiplomaticVisit'': Discussed in chapter 15.
** Rarity admits that she sometimes feels she's more a mother to Sweetie Belle than a sister, and that her own mother feels that Rarity does a better job at raising Sweetie Belle than she does.
** Scootaloo is mainly raised by her two aunts (whom Rainbow Dash admits are more parents to Scoots than her birth parents), since her ''actual'' parents are away doing important scientific work.
* Played straight and downplayed in ''[[https://www.fanfiction.net/s/13034223/21/A-Discordant-Note A Discordant Note]]'', Harry is [[ItMakesSenseInContext dead and killing a god]] for most of the time Tyrion Lannister is being fostered at Dol Guldur, but he still finds himself respecting the sorcerer more than his own father. Meanwhile, Harry's wife Luna very much acts the part of a doting mother for Tyrion ([[TeamMom as well as pretty much everyone younger than her in Angmar]]).
* In ''Fanfic/{{Mudsnake}}'', Hermione resonates with Snape and the two end up bonding. The story even ends with Snape [[spoiler:becoming Hermione's guardian]].

* ''Fanfic/FateBlackDawn'': Mordred assumes that the strange man who has been hanging around her mother is her father. Shirou doesn't have the heart to correct her, and immediately does everything in his power to be a better parent than Morgan and Arturia (though Arturia doesn't know about Mordred yet, he knows she won't do a very good job once she does know).
* In ''Batman'' fanfiction ''Fanfic/DanceWithTheDemons'', Philip Wayne raised his nephew Bruce after Thomas and Martha's deaths (as per Pre-Crisis canon).
-->Philip Wayne adjusted his hearing aid a bit and smiled. Bruce was almost 40 now, and he'd darned near given up on getting the whippersnapper married. To him had fallen the task of raising the boy, after his brother Thomas and Thomas's wife Martha had been shot dead in the street those long years ago. He'd never seen a boy so intense and serious as Bruce had been. The boy was either cracking half the books in the library, or doing experiments with his chemistry set, or building up his body, or doing gymnastics. But he'd turned out well, and then some.
* ''FanFic/CodePrime'': While subtle at first, later chapters in the story indicate that Lelouch is starting to view Optimus as a father figure since his real father is a...less than stellar parent. Mao's remarks in Chapter 19 outright confirms that Lelouch views Optimus as his surrogate father.
* Gaster acts as a mentor and parental figure to [[Characters/UndertaleSans Sans]] in ''Fanfic/NotAsSimpleAsAHappyEnding''.
* Dr. Roman tries to be one for Mash in ''Fanfic/FateSunnyOrder''. Unfortunately, he has no idea ''how'' to be a parent, and none of the male Servants have the best experience at being fathers for him to ask them.
* Many ''VideoGame/Persona5'' fanfics such as ''Fanfic/YouSeeThem'' have Sojiro be one not just for Futaba like in canon, but also for Akira/Ren, often because the latter's parents rejected him after the false accusation.
* In an inverse of a canon, ''Webcomic/Persona5AdultConfidantAU'' has [[AgeLift Futaba being the adoptive mother for Sojiro]]. While they bicker occasionally, it's clear the two care for each other, [[spoiler:enough that Sojiro is against stealing her heart out of fear of her becoming a soulless husk as the previous Palace rulers have]].
* In ''[[https://www.fanfiction.net/s/13537494/1/Memories-of-an-Angel Memories of an Angel]]'', [[Anime/AngelBeats Otonashi]] meets a young Noda [[spoiler:during the train accident that would end the former's life]]. After learning about the boy's abusive father, Otonashi wanted to adopt Noda so he and Kanade can give him a happier life. Even in the afterlife, Noda still had great admiration for the doctor-in-training. [[spoiler:Unfortuently, Otonashi's death and Kanade's fall into grief afterwards prevent this from occurring]].
* In ''[[https://www.fanfiction.net/s/12014713/1/It-Takes-a-Village It Takes a Village]]'', the Visored from ''Manga/{{Bleach}}'' become this for Orihime after Hollows killed her family. Kensei in particular is her most prominent father figure.
* ''Fanfic/RainbowDoubleDashsLunaverse:''
** Trixie and Princess Luna, though unlike Twilight Sparkle and Celestia theirs is more of a parent and rebellious teenager relationship (complete with Trixie beginning the series acting out to get back at Luna). Doesn't mean they don't care about one another though - Luna utterly panics when she thinks Trixie has possibly been killed.
** The non-continuity fic ''Nightmares Yet to Come'' has Thesis and Midnight. Thesis being a child created by magical mishap involving Trixie and Twilight, and she considers them the closest thing she has to mothers, but it's Midnight who is her legal guardian, claiming she is her sister (Thesis being too young to catch on to how much this is blatant BS). That said, [[spoiler:it's shown Midnight is involved with the ponies who caused the incident that created Thesis, so her actual relation to the kid could be closer than Trixie or Thesis know.]]
* In the genderbend one shots of [[https://www.fanfiction.net/s/10264509/228/Tales-of-Fairies Tales of]] [[https://www.fanfiction.net/s/10264509/550/Tales-of-Fairies Fairies]], Aquarius is one to [[GenderFlip Luca Heartfillia]], taking the role of a surrogant mother after his real mother's death and his father becoming distant. She is responsible for training him to use self-defense with his whip, and often disapproves of the girls that come near her "precious boy" like Natsu.
* ''Fanfic/ChildrenOfRemnant'': Winter reveals that after her mother's death, it was Kali who stepped in to comfort her and help fill the gap that Willow's death left behind. As a result, Winter has complete trust in her abilities and intelligence.
* Upon meeting Mermista in ''[[https://www.fanfiction.net/s/13141582/6/Sora-and-the-Princess-of-Power Sora and the Princesses of Power]]'', Goofy (''of all people!'') immediately starts to act like a parental figure towards her after figuring out that a [[GoodParents proper parent]] is something Mermista desperately needs.

* In ''Evangelion''/''Street Fighter'' crossover ''Fanfic/NeonGenesisEvangelionSenshiNoMichi'', Gouken took care of Shinji and Asuka after they were abandoned. As a result of being raised and trained in martial arts by a caring mentor in a peaceful, quiet environment, both children became more emotionally stable, balanced and focused than their canon selves; to the point that Asuka does not even want to think where she might be without his teachings.
* In the oneshot ''[[https://www.fanfiction.net/s/13580152/1/ Like a Mom to Me]]'', Misty openly tells Delia Ketchum that she views her as a surrogate mother figure, given that her biological mother died when she was too little, and her father works abroad and rarely comes home, so she was mostly raised by her sisters.
* ''Fanfic/GleeReprise'' Rachel's trying to be this for Beth following the accident that put Shelby into a coma, but Beth's not having any of it.
* ''Fanfic/ThePrincessWhoCarriesTheBloodOfTheGoddess'': After Zelda's mother died, she was basically raised by Urbosa, her mother's oldest friend. She certainly did a better job of it than the King. Urbosa was known as the only person who could get away with yelling at the King, and those usually ended with Urbosa accompanying Zelda on long journeys far away from the King. Even before Zelda regains her memories of Urbosa, she is perfectly fluent in Gerudo and feels an instinctive connection with the Gerudo Desert. [[spoiler:A scene from Urbosa's point of view has her think of Zelda as "''our daughter''," implying a more intimate relationship with the Queen than Zelda ever knew about]].

* In the ''Anime/{{Pokemon}}'' fanfic, ''Fanfic/CommonSense'', it's revealed that Misty's parents [[ParentalAbandonment abandoned the Gym]] when she was younger. With her older sisters being too busy and/or self-absorbed to look after her, the Pokémon of the Gym wound up looking after her with [[LikeBrotherAndSister Staryu and Goldeen]] playing with her and teaching her to swim while Starmie was the voice of reason growing up.

* In the slice-of-life ''Anime/{{Pokemon}}'' fanfic ''[[https://www.fanfiction.net/s/10868124/1/Team-Dad-Assemble Team Dad Assemble!]],'' Archie and Maxie have [[HeelFaceTurn put aside their villainous ways,]] merged their teams, and become a couple, as well as surrogate fathers to Brendan and May, who now live with them. When May's father Norman skips out on their annual father-daughter picnic due to an important evaluation at the Petalburg Gym, leaving her crushed, Archie and Maxie decide to go with her to the event as honorary dads for the day to cheer her up. HilarityEnsues.

* ''Franchise/TheLegendOfZelda [[VideoGame/TheLegendOfZeldaBreathOfTheWild Breath of the Wild]]'' fanfic ''[[https://archiveofourown.org/works/15049127/chapters/34887398 The Princess Who Carries the Blood of the Goddess]]'': After Zelda's mother died, she was basically raised by Urbosa, her mother's oldest friend. She certainly did a better job of it than the King. Urbosa was known as the only person who could get away with yelling at the King, and those usually ended with Urbosa accompanying Zelda on long journeys far away from the King. Even before Zelda regains her memories of Urbosa, she is perfectly fluent in Gerudo and feels an instinctive connection with the Gerudo Desert. [[spoiler:A scene from Urbosa's point of view has her think of Zelda as "''our daughter''," implying a more intimate relationship with the Queen than Zelda ever knew about]].

* Upon meeting Mermista in ''[[https://www.fanfiction.net/s/13141582/6/Sora-and-the-Princess-of-Power Sofa and the Princesses of Power]]'', Goofy (''of all people!'') immediately starts to act like a parental figure towards her after figuring out that a [[GoodParents proper parent]] is something Mermista desperately needs.