Mostly averted, unsurprisingly, as the Arrowverse has many characters that are separated by being in different series, different universes, different time periods or appeared seasons apart.
First Names
- Arrow Starter Villain Adam Hunt, Adam Donner, Adam Foster (Cat's eldest son), Adam Macalister, and Adam Fells aka Geomancer.
- Alex Danvers, Alex Davis, Alex Faust, Alexi Leonov, and Lex Luthor.
- Anthony Bellows and Anthony Ivo.
- Astra Logue and General Astra from Krypton.
- Barry Allen and a young Barack Obama.
- Ben Turner aka Bronze Tiger, Ben Krull aka Reactron, and Ben Lockwood aka Agent Liberty.
- Bette Sans Souci, Betty Seaver and Beth Kane aka Alice.
- Carter Hall aka Hawkman and Carter Grant (Cat's younger son).
- Catherine "Cat" Grant, Katherine Grant, Katherine "Kate" Kane, and Catherine Hamilton-Kane.
- Cecile Horton and the first Count Vertigo whose real name was Cecil Adams. However, The Reveal of the latter's name only happens long after his death.
- Charles "Chuck" McCabe (Mari's adoptive father), Charles McNider aka Doctor Mid-Nite, and Charlie (real name Clotho).
- Cyrus Vanch, Cyrus Gold and Cyrus Broderick.
- David Singh, David P. Ratchet aka Big Sir, and David Hersch.
- Derek Reston aka King and Derek Sampson.
- Arrow Season 1 flashback Big Bad Edward Fryers, The Flash Season 1 regular Edward "Eddie" Thawne, The Flash Season 3 Starter Villain Edward Clariss aka The Rival, and Edward Nygma. Also Eddie Slick, but it's unclear what his full name is.
- Eliza Danvers, Eliza Harmon aka Trajectory, and Jonathan Kent's ex-girlfriend Eliza.
- Eve Tessmacher and Eve Baxter.
- Frank Pike, Frank Chen, Frank Bertinelli, and Frankie Kane.
- Hank Henshaw and Hank Heywood.
- Henry Allen, Henry Hewitt, Henry Stein, Henry Heywood, and Henry "Hank" Heywood.
- Isabel Rochev and Isabel Nal.
- Jefferson "Jax" Jackson and Jefferson Pierce
- James Olsen, James Jesse, James Harper, James Jackson (Jax's father), and James Zolomon (Zoom's father).
- Joe West, Joe Boardman (Hawkman's Early 20th Century incarnation), Joe Wilson, and Joey Monteleone aka Tar Pit.
- John Diggle, John Diggle Jr., John Constantine, Jon Valor, John Corben aka Metallo, John Noble, John Deegan, John Henry Irons, and J'onn J'onzz.
- Jonathan Crane, Jonathan Cartwright, and Jonathan Kent.
- Kyle Reston aka Ace, Kyle Nimbus aka The Mist, and Kyle Cushing.
- Leslie Willis aka Livewire, Leslie Jocoy aka Amunet Black, and Leslie Larr.
- Lisa Snart aka Golden Glider and Liza Warner aka Lady Cop.
- Mark Scheffer aka Shrapnel and Mark Mardon aka Weather Wizard.
- Mary Xavier (Rip's adoptive mother), Mary McGowan (Winn's mother), Mary Hamilton, and Marie Antoinette.
- Miranda Crane and Miranda Coburn (Rip's late wife).
- Nia Nal and Nia Wilder (the name given for Ryan's apparently dead birth mother)
- Nora Darhk (daughter of Damien), Nora Allen (Barry's mother), Nora West-Allen (Barry and Iris's daughter, named after her grandmother), and Nora Fries.
- Patty Spivot, Patricia "Patty" McCabe (Mari's adoptive mother), and Patricia Arias (Sam's adoptive mother).
- Quentin Lance and Quentin Turnbull.
- Ray Palmer and Ray Terrill a.k.a. "The Ray". This was actually lampshaded in a Legends episode.
- Rebecca "Becky" Sharpe and Rebecca Merlyn (Malcolm's late wife).
- Rene Ramirez a.k.a. Wild Dog, Renee Chandler (Chaz Chandler's wife), Renee Adler, and Renee Montoya.
- Robert Queen, Robert Terrill (Ray Terrill's father), and Rob (Captain Singh's husband).
- Roy Harper aka Arsenal, Roy G. Bivolo aka Prism aka Rainbow Raider, and Roy Stewart.
- Ryan Choi aka Atom II and Ryan Wilder aka Batwoman II.
- Samantha Arias and Samantha Claytonnote . Since the former goes by Sam, this also puts her in conflict with Sam Lane, Sam Armand, and Sam Scudder aka Mirror Master.
- Sara Lance, Sara Diggle, and Sarah Cushing. Coincidentally, the former two spent a while dead or nonexistent.
- Simon Stagg, Simon Lacroix aka Komodo, and Simon Morrison aka Prometheus.
- Sophie Moore and Sophie Cushing.
- Susan Vasquez, Susan Williams, and Susan Brayden.
- Ted Kord, Ted Grant aka Wildcat, and Teddy Reston aka Jack.
- Thomas "Tommy" Merlyn, Tom Patterson, Tommy Moran, Thomas Coville, Thomas "Tommy" Constantine, Thomas Snow aka Icicle and Thomas "Tommy" Elliot.
- Veronica Sinclair aka Roulette and Veronica Dale.
- William Clayton, William Tockman the Clock King, William Lang aka Gridlock, William Shakespeare, and William Dey. There are also Billy Wintergreen and Billy Malone.
- Zoe Lawton (Deadshot's daughter), Zoe Ramirez (Rene's daughter), and Zoey Clark.
Last Names
- Cecil Adams aka Count Vertigo I and Onyx Adams.
- Legends of Tomorrow Season 1 regular Carter Hall and Arrow Season 1 Recurring Character McKenna Hall.
- Frankie Kane, Kate Kane, Jacob Kane, and Beth Kane. The latter three are relatives.
- Jean Loring and Anna Loring. The two are a Decomposite Character, the former is Ray Palmer's Love Interest in the comics but in The 'Verse that role was filled by the latter.
- JSA member Dr. Mid-Nite and Constantine antagonist Papa Midnite (both are aliases).
- Ritchie Sampson and Derek Sampson.
- Evelyn Crawford Sharp, Rebecca "Becky" Sharpe, Raelene Sharp, and Ava Sharpe.
- Caitlin Snow, Thomas Snow, and Bethany Snow. The first two are child and parent respectively.
Full Names
- Catherine "Cat" Grant and her mother Katherine.
- "The Crows" is the name of both the security company founded by Jacob Kane, and the Smallville High School football team.
- Both the second Black Canary and Laurel and Sara's mother are named Dinah Drake.
- Henry Heywood and his son Henry "Hank" Heywood.
- Jonathan Kent is the name of both Clark Kent's late adopted father and his and Lois' son.
- Nora Allen is the name of both Barry's late mother and his and Iris' (future) daughter. Well, West-Allen in the latter's case.
- Winslow Schott, Jr. and his father Winslow Schott, Sr. The former goes by his nickname Winn to avoid association with his criminal father.
Mixed Names
- Julian Albert Desmond and Albert Einstein.
- Danton Black aka Multiplex and Leslie Jocoy aka Amunet Black.
- Adam Hunt, Adam Donner, Adam Foster, Adam Macalister, Adam Fells aka Geomancer, and Onyx Adams.
- Chase, the DJ spy of the League of Assassins in Arrow Season 3, Earth-38 FBI agent Cameron Chase, and Arrow Season 5 Big Bad Adrian Chase. Of the three, only Cameron Chase went by her real name; the other two were aliases (implied for the first, confirmed for the last).
- Clark Kent and Zoey Clark.
- John Constantine, Constantine Drakon, and Konstantin Kovar.
- Cat Grant, Katherine Grant, Carter Grant, Ted Grant, and Grant Wilson. The first three are relatives.
- Rip Hunter and Hunter Zolomon (of both Earths 1 and 2, the latter being Zoom).
- James Olsen, James Jesse aka Trickster, James Harper, James Jackson (Jax's father), James Zolomon (Zoom's father), and Cayden James.
- Jesse Chambers Wells aka Jesse Quick and James Jesse aka The Trickster I.
- Raymond Palmer, Raymond Terrill, and Ronnie Raymond.
- Martin Stein and Zed Martin.
- Tess Morgan, Randolf Morgan, and Morgan Edge.
- Mick Rory (and his father Dick Rory) and Rory Regan a.k.a. Ragman.
- Werner Zytle aka Count Vertigo II and Liza Warner aka Lady Cop.
Straight Examples
- Earth-1 Laurel Lance's full name is Dinah Laurel Lance, but she opts to go by her middle name to differentiate herself from her mother Dinah Drake-Lance. Speaking of Laurel, it's implied her Earth-2 counterpart goes by Dinah on her own Earth, but because Team Arrow already had a Dinah, she's Laurel on Earth-1.
- The Present Day ancestor of Eobard Thawne is named Malcolm Thawne in the comics, but since there's already a prominent antagonist named Malcolm here, he is renamed Eddie. However in season 9 of The Flash, a resurrected Eddie uses "Malcolm Gilmore" as an Alias.
- Frankie Kane's real name in the comics is Francine Kane. But since that is the name of Iris and Wally's mother here, she's been renamed Frankie.
