| Tegami Bachi | October 3, 2009 | TV Tokyo | — |
| Tekkaman Blade | February 18, 1992 | — | — |
| Tekkaman: The Space Knight | July 2, 1975 | — | 26 |
| Tekken: Bloodline | August 18, 2022 | — | — |
| Telepathy Shōjo Ran | June 21, 2008 | NHK Educational TV | 26 |
| Telmo and Tula: Little Cooks | — | — | 52 |
| Temple the Balloonist | October 1, 1977 | — | 26 |
| Ten Year Old Tom | — | — | — |
| Tenchi in Tokyo | — | — | 26 |
| Tenchi Muyo! GXP | April 3, 2002 | — | 26 |
| Tenchi Muyo! Ryo-Ohki | — | — | 24 |
| Tenchi Muyo! War on Geminar | March 20, 2009 | — | 13 |
| Tenchi Universe | April 2, 1995 | — | 26 |
| Tender Touches | December 18, 2017 | Adult Swim | 5 |
| Tenjho Tenge | April 1, 2004 | — | 24 |
| Tenjho Tenge: The Ultimate Fight | — | — | 2 |
| Tenkai Knights | August 24, 2013 | — | 52 |
| Tenkaichi | — | — | — |
| Tenko and the Guardians of the Magic | September 11, 1995 | Broadcast syndication | 13 |
| Tennessee Tuxedo and His Tales | September 28, 1963 | CBS | 75 |
| TenPuru | July 9, 2023 | — | 12 |
| Tensai Bakabon | September 25, 1971 | Nippon Television | 40 |
| Tenshi no Shippo Chu! | March 6, 2003 | — | 11 |
| Tentacle and Witches | May 27, 2011 | — | 4 |
| Teogonia | April 12, 2025 | — | 12 |
| Teppen—!!!!!!!!!!!!!!! | July 2, 2022 | — | 12 |
| Terminator Salvation: The Machinima Series | May 18, 2009 | — | 6 |
| Terminator Zero | August 29, 2024 | Netflix | 8 |
| Terra Formars | September 26, 2014 | — | 26 |
| Terra Formars: Bugs 2 Arc | August 19, 2014 | — | 2 |
| Terra Formars: Earth Arc | August 17, 2018 | — | 2 |
| Terror in Resonance | July 10, 2014 | — | 11 |
| Terror Man | — | TVING | — |
| Tesagure! Bukatsu-mono | October 6, 2013 | — | 36 |
| Tesla Note | October 3, 2021 | — | 13 |
| Testament: The Bible in Animation | October 11, 1996 | — | 9 |
| Tetsujin 28-go | April 7, 2004 | — | 26 |
| Tetsujin 28-go Gao! | — | — | — |
| Tetsuko no Tabi | June 24, 2007 | — | 13 |
| Tetsuryō! Meet with Tetsudō Musume | October 9, 2026 | — | — |
| Texhnolyze | April 17, 2003 | — | 22 |
| Tezuka Osamu no Don Dracula | April 5, 1982 | TV Tokyo | — |
| That Is the Bottleneck | October 13, 2020 | TV Tokyo | 12 |
| That Time I Got Reincarnated as a Slime | October 2, 2018 | — | 72 |
| That Time I Got Reincarnated as a Slime: Clayman's Revenge | April 2027 | — | — |
| That Time I Got Reincarnated as a Slime: Visions of Coleus | — | — | 3 |
| The "Hentai" Prince and the Stony Cat | April 13, 2013 | — | 12 |
| The 100 Girlfriends Who Really, Really, Really, Really, Really Love You | October 8, 2023 | — | 24 |
| The 100th Time's the Charm | — | — | — |
| The 13 Ghosts of Scooby-Doo | September 7, 1985 | American Broadcasting Company | 13 |
| The 7D | July 7, 2014 | Disney XD | 44 |
| The 8th Son? Are You Kidding Me? | April 2, 2020 | — | 12 |
| The Abashiri Family | May 21, 1991 | — | 4 |
| The Abduction of Balthazar Sponge | 1969 | — | 13 |
| The Addams Family | September 12, 1992 | American Broadcasting Company | 21 |
| The Addams Family | September 8, 1973 | NBC | 16 |
| The Adventures of Abney & Teal | September 26, 2011 | CBeebies | 52 |
| The Adventures of Batman | September 14, 1968 | CBS | 17 |
| The Adventures of Bernie | — | — | — |
| The Adventures of Blinky Bill | January 1, 1993 | Australian Broadcasting Corporation, Seven Network | 78 |