| 101 Dalmatians: The Series | September 1, 1997 | American Broadcasting Company, Broadcast syndication | 65 |
| 12 oz. Mouse | June 19, 2005 | Adult Swim, Cartoon Network | 22 |
| 2 Stupid Dogs | September 5, 1993 | TBS, Cartoon Network | 39 |
| 3-South | November 7, 2002 | MTV | 13 |
| 3Below: Tales of Arcadia | December 21, 2018 | Netflix | 26 |
| A Little Curious | 1998 | HBO | 43 |
| A Pup Named Scooby-Doo | September 10, 1988 | American Broadcasting Company | 30 |
| A Tale Dark & Grimm | October 8, 2021 | Netflix | 10 |
| Aaahh!!! Real Monsters | October 29, 1994 | Nickelodeon | 52 |
| Abominable and the Invisible City | — | — | — |
| Ace Ventura: Pet Detective | December 9, 1995 | CBS | 39 |
| Action League Now! | October 14, 1995 | Nickelodeon | 65 |
| Action Pack | January 4, 2022 | Netflix | 17 |
| Ada Twist, Scientist | September 28, 2021 | Netflix | 41 |
| Adventure Time | April 5, 2010 | Nicktoons, Cartoon Network, Cartoon Network | 278 |
| Adventure Time: Fionna and Cake | August 31, 2023 | HBO Max | 20 |
| Adventure Time: Side Quests | June 29, 2026 | Hulu, Disney+ | — |
| Adventures from the Book of Virtues | September 2, 1996 | PBS Kids | 39 |
| Adventures in Wonder Park | 2025 | Nickelodeon | 20 |
| Adventures of Pow Wow | January 30, 1949 | — | — |
| Adventures of Sonic the Hedgehog | December 3, 1993 | Broadcast syndication | 66 |
| Agent 203 | — | — | — |
| Agent Elvis | March 17, 2023 | — | — |
| Aladdin | September 5, 1994 | CBS, Disney Channel | 86 |
| ALF Tales | September 10, 1988 | NBC | 21 |
| ALF: The Animated Series | September 26, 1987 | NBC | 26 |
| Alice's Wonderland Bakery | February 9, 2022 | Disney Jr. | 50 |
| Alien News Desk | February 27, 2019 | Syfy | — |
| Alien Racers | November 19, 2005 | Fox Broadcasting Company | 4 |
| Alien: Isolation – The Digital Series | — | — | — |
| Alienators: Evolution Continues | September 15, 2001 | Fox Kids | 26 |
| All Dogs Go to Heaven: The Series | September 21, 1996 | American Broadcasting Company | 40 |
| All Grown Up! | April 12, 2003 | Nickelodeon | 55 |
| All Hail King Julien | December 19, 2014 | Netflix | 26 |
| Allen Gregory | October 30, 2011 | Fox Broadcasting Company | 7 |
| Alma's Way | October 4, 2021 | PBS Kids | — |
| Alvin and the Chipmunks | September 17, 1983 | NBC | 102 |
| Alvinnn!!! and the Chipmunks | March 30, 2015 | NBC, M6, MNCTV | 130 |
| American Dad! | February 6, 2005 | Fox Broadcasting Company, TBS | 399 |
| American Dragon: Jake Long | January 21, 2005 | Disney Channel, Disney XD | 52 |
| Amethyst, Princess of Gemworld | — | Cartoon Network | 7 |
| Among Us | June 5, 2026 | Paramount+ | — |
| Amphibia | June 17, 2019 | Disney Channel | 58 |
| Angela Anaconda | October 4, 1999 | Télétoon | 65 |
| Angry Birds Toons | March 16, 2013 | MTV3, Toons.TV | 130 |
| Angry Birds: Summer Madness | January 28, 2022 | Netflix | 16 |
| Angry Kid | 1999 | British Broadcasting Corporation | 50 |
| Animal Armageddon | February 12, 2009 | Animal Planet | 8 |
| Animals | February 5, 2016 | HBO | 30 |
| Animaniacs | January 8, 1993 | Kids' WB | 99 |
| Animaniacs | November 20, 2020 | Hulu | 102 |
| Animator vs. Animation | June 3, 2006 | YouTube, Newgrounds, Atom.com | 14 |
| Ant-Man | June 10, 2017 | — | 6 |
| Ape Escape | August 3, 2008 | Nicktoons | 19 |
| Apollo Gauntlet | July 9, 2017 | Adult Swim | 6 |
| Apple & Onion | February 23, 2018 | Cartoon Network | 76 |
| Aqua Teen Hunger Force | December 30, 2000 | Adult Swim | 139 |
| Aquaman | September 9, 1967 | CBS | 36 |
| Aquaman: King of Atlantis | 2021 | — | 3 |
| Arabian Knights | September 7, 1968 | NBC | 18 |