| Click & Clack's As the Wrench Turns | July 9, 2008 | PBS | 10 |
| Cliff Hanger | November 1, 1999 | France 3 | 26 |
| Clifford the Big Red Dog | September 4, 2000 | PBS Kids | 65 |
| Clifford the Big Red Dog | 1988 | — | 6 |
| Clione no Akari | July 12, 2017 | — | 12 |
| Clockwork Planet | April 6, 2017 | — | 12 |
| Clone High | November 2, 2002 | MTV, Cartoon Network, HBO Max | 33 |
| Close Enough | July 9, 2020 | HBO Max | 24 |
| Cloudy with a Chance of Meatballs: The Series | February 20, 2017 | Cartoon Network | 104 |
| Clue Club | August 14, 1976 | CBS | 16 |
| Cluster Edge | October 4, 2005 | TV Tokyo | 25 |
| Clutch Cargo | March 9, 1959 | — | 52 |
| Clémentine | — | Antenne 2 | 39 |
| Cnex | — | S4C | — |
| Cobra the Animation | January 2, 2010 | — | 13 |
| Cobra The Animation: The Psycho-Gun | August 29, 2008 | — | 4 |
| Cobra the Animation: Time Drive | April 24, 2009 | — | 2 |
| Cocco Bill | December 10, 2000 | — | 104 |
| Cococinel | — | TF1 | 52 |
| Cocomong | 2008 | — | 78 |
| Coconut Fred's Fruit Salad Island | September 17, 2005 | Kids' WB | 13 |
| Code Geass Lelouch of the Rebellion | October 6, 2006 | — | 50 |
| Code Geass: Akito the Exiled | August 4, 2012 | — | 5 |
| Code Geass: Rozé of the Recapture | — | — | — |
| Code Lyoko | September 3, 2003 | France 3 | 97 |
| Code Monkeys | July 11, 2007 | G4 | 26 |
| Code-E | July 3, 2007 | — | 24 |
| Code:Breaker | October 7, 2012 | — | 13 |
| Code:Realize − Guardian of Rebirth | October 7, 2017 | — | 12 |
| Codename X | — | KBS 1TV | 26 |
| Codename: Kids Next Door | December 6, 2002 | Cartoon Network | 78 |
| Coiled Dragon | — | — | — |
| Collar x Malice Movie: Deep Cover | — | — | — |
| Colorful na Everyday | December 18, 2023 | — | 26 |
| Colourblocks | September 12, 2022 | CBeebies | 45 |
| Combat Mecha Xabungle | February 6, 1982 | Nagoya Broadcasting Network | 50 |
| Combatants Will Be Dispatched! | April 4, 2021 | — | 12 |
| Comet Lucifer | October 4, 2015 | — | — |
| Comi and Bebe | — | EBS 1TV | — |
| Comic Girls | April 5, 2018 | Tokyo MX | 12 |
| Comic Party | April 2, 2001 | — | 13 |
| Comic Party Revolution | December 22, 2003 | — | 4 |
| Comic Party Revolution | April 4, 2005 | — | 13 |
| Comical Psychosomatic Medicine | — | — | — |
| Common Side Effects | February 2, 2025 | Adult Swim | 10 |
| Conan the Adventurer | September 12, 1992 | Broadcast syndication | 65 |
| Conception | October 10, 2018 | — | 12 |
| Conch Bay | 2008 | CCTV-14 Children | 130 |
| Concrete Revolutio | October 4, 2015 | Tokyo MX | — |
| Concrete Revolutio: The Last Song | April 3, 2016 | — | 11 |
| Congqian Youzuo Lingjianshan | January 9, 2016 | — | 24 |
| Constantine: City of Demons | March 24, 2018 | CW Seed | 2 |
| Convenience Store Boy Friends | July 6, 2017 | — | 12 |
| Cooking Papa | April 9, 1992 | — | 151 |
| Cooking with Valkyries | — | — | — |
| Cool McCool | September 10, 1966 | NBC | 20 |
| Cop Craft | July 8, 2019 | — | 12 |
| Coppelion | October 2, 2013 | — | 13 |
| Corduroy | September 30, 2000 | TVOKids | 26 |
| Corn & Peg | March 4, 2019 | Nickelodeon | 40 |