The following is a list of episodes and summaries for the darkly humorous FX sitcom It's Always Sunny in Philadelphia, about a quintet of loud, selfish, narcissistic characters who work at one of the worst bars in Philadelphia, Paddy's Pub. As of Season 9, the show now airs on the FX digital cable spinoff channel, FXX.
NOTE: Due to heightened concerns of systemic racism from June 2020's George Floyd riots, the episodes "America's Next Top Paddy's Billboard Model Contest", "Dee Reynolds: Shaping America's Youth", "The Gang Recycles Their Trash", "The Gang Makes Lethal Weapon 6", and "Dee Day" have been banned from most streaming sites (Hulu and FX Now) and "Dee Day" isn't on the Season 14 DVD set (though the other banned episodes are).
- The Gang Finds a Dumpster Baby
- The Gang Gets Invincible
- Dennis and Dee's Mom is Dead
- The Gang Gets Held Hostage
- The Aluminum Monster vs. Fatty Magoo
- The Gang Solves The North Korea Situation
- The Gang Sells Out
- Frank Sets Sweet Dee on Fire
- Sweet Dee is Dating a Retarded Person
- Mac is a Serial Killer
- Dennis Looks Like a Registered Sex Offender
- The Gang Gets Whacked Part 1
- The Gang Gets Whacked Part 2
- Bums: Making a Mess All Over The City
- The Gang Dances Their Asses Off
- Mac and Dennis: Manhunters
- The Gang Solves the Gas Crisis
- America's Next Top Paddy's Billboard Model Contest
- Mac's Banging the Waitress
- Mac and Charlie Die Part 1
- Mac and Charlie Die Part 2
- Who Pooped the Bed?
- Paddy's Pub: The Worst Bar in Philadelphia
- Dennis Reynolds: An Erotic Life
- Sweet Dee Has a Heart Attack
- The Gang Cracks the Liberty Bell
- The Gang Gets Extreme: Home Makeover Edition
- The Nightman Cometh
- The Gang Exploits the Mortgage Crisis
- The Gang Hits the Road
- The Great Recession
- The Gang Gives Frank an Intervention
- The Waitress is Getting Married
- The World Series Defense
- The Gang Wrestles for the Troops
- Paddy's Pub: Home of the Original Kitten Mittens
- Mac and Dennis Break Up
- The D.E.N.N.I.S. System
- Mac and Charlie Write a Movie
- The Gang Reignites the Rivalry
- Mac Fights Gay Marriage
- Dennis Gets Divorced
- The Gang Buys a Boat
- Mac's Big Break
- Mac and Charlie: White Trash
- Mac's Mom Burns Her House Down
- Who Got Dee Pregnant?
- The Gang Gets a New Member
- Dee Reynolds: Shaping America's Youth
- Charlie Kelly: King of the Rats
- The Gang Gets Stranded in the Woods
- Dee Gives Birth
- A Very Sunny Christmas
- Frank's Pretty Woman
- The Gang Goes to the Jersey Shore
- Frank Reynolds' Little Beauties
- Sweet Dee Gets Audited
- Frank's Brother
- The Storm of the Century
- Chardee MacDennis: The Game of Games
- The ANTI-Social Network
- The Gang Gets Trapped
- How Mac Got Fat
- Thunder Gun Express
- The High School Reunion Part 1
- The High School Reunion Part 2