| Reggae Rabbits | — | — | — |
| Regular Show | September 6, 2010 | Cartoon Network | 261 |
| Regular Show: The Lost Tapes | May 11, 2026 | Cartoon Network | — |
| Rekkit Rabbit | March 16, 2011 | TF1 | 104 |
| Reksio | 1967 | Telewizja Polska | 65 |
| Remi | October 7, 1979 | AVRO | 50 |
| Remy & Boo | May 1, 2020 | Universal Kids | — |
| Ren & Stimpy | July 1, 2024 | Comedy Central | 10 |
| Ren & Stimpy "Adult Party Cartoon" | June 26, 2003 | Spike TV | 6 |
| Renada | October 5, 1998 | — | 72 |
| Renegade Immortal (Donghua) | — | — | — |
| Rescue Heroes | October 2, 1999 | CBS, Cartoon Network | 40 |
| Return to the Planet of the Apes | September 6, 1975 | NBC | 13 |
| Revisioned: Tomb Raider | — | — | 10 |
| Rhyme Time Town | 2020 | Netflix | 6 |
| Rhyme Time Town Singalongs | December 22, 2020 | Netflix | 10 |
| Ribbit's Riddles | 2005 | Canal+ | 52 |
| Richie Rich | November 8, 1980 | Boomerang, American Broadcasting Company | 40 |
| Richie Rich | September 14, 1996 | Broadcast syndication | 13 |
| Rick & Steve: The Happiest Gay Couple in All the World | July 10, 2007 | Cartoon Network, Logo TV | 14 |
| Rick and Morty | December 2, 2013 | Adult Swim | 71 |
| Rick and Morty: The Anime | August 16, 2024 | — | 10 |
| Rickety Rocket | September 1, 1979 | — | 16 |
| Ricky Sprocket: Showbiz Boy | August 31, 2007 | Télétoon | 25 |
| Ricky Zoom | June 28, 2019 | Nick Jr. | 26 |
| Ricochet Rabbit & Droop-a-Long | January 14, 1964 | Broadcast syndication | 23 |
| Ridley Jones | July 13, 2021 | Netflix | — |
| Rift | — | — | — |
| Right Now Kapow | September 19, 2016 | Disney XD | 10 |
| Rimba Racer | December 25, 2014 | TV3 | — |
| Rimba's Island | June 27, 1994 | — | — |
| Ring Raiders | September 16, 1989 | — | 5 |
| Ringing Fate | — | Bilibili | — |
| Rintindumb | September 6, 2006 | France 3 | 76 |
| Ripley's Believe It or Not!: The Animated Series | — | France 3 | 26 |
| Rise of the Teenage Mutant Ninja Turtles | July 20, 2018 | Nicktoons, Nickelodeon | 26 |
| Riseman | — | MBC TV | 26 |
| Rita and Whatsit | — | NHK | — |
| Rita og Krokodille | 2014 | — | 26 |
| Road Rovers | September 7, 1996 | Kids' WB | 13 |
| Roary the Racing Car | May 7, 2007 | Nickelodeon, Channel 5, Nick Jr. | 104 |
| Rob the Robot | September 7, 2010 | — | 104 |
| Robin Hood: Mischief in Sherwood | June 9, 2016 | Discovery Family | 156 |
| Robinson Sucroe | January 17, 1994 | Canal+ | 26 |
| Robo Story | — | Canal+ | 52 |
| Robocar Poli | February 28, 2011 | EBS 1TV | 52 |
| RoboCop | October 1, 1988 | Broadcast syndication | 12 |
| RoboCop: Alpha Commando | September 7, 1998 | Broadcast syndication | 41 |
| RoboGobo | January 3, 2024 | Disney Jr. | 24 |
| Roboroach | January 8, 2002 | Télétoon | 52 |
| RoboSplaat! | — | YouTube | — |
| Robot and Monster | August 4, 2012 | Nickelodeon | 26 |
| Robot Chicken | February 20, 2005 | Adult Swim | 227 |
| Robot Trains | — | — | — |
| Robotboy | November 1, 2005 | Cartoon Network, France 3 | 52 |
| Robotech | March 4, 1985 | Broadcast syndication | 85 |
| Robotix | 1985 | — | — |
| Robotomy | October 25, 2010 | Cartoon Network | 10 |
| Robozuna | October 18, 2018 | ITV | 20 |
| Rock Paper Scissors | February 11, 2024 | Nickelodeon | 40 |