| Trigun Stampede | January 7, 2023 | — | — |
| Trigun Stargaze | January 10, 2026 | — | 12 |
| Trillion Game | October 3, 2024 | — | — |
| Trinity Blood | April 28, 2005 | WOWOW | 24 |
| Trinity Seven | October 8, 2014 | — | 12 |
| Triple Z | 1998 | Super RTL | 52 |
| Tripping the Rift | March 4, 2004 | Syfy | 39 |
| TripTank | April 2, 2014 | Comedy Central | 18 |
| Triton of the Sea | April 1, 1972 | TV Asahi | 27 |
| Trivia Quest | April 1, 2022 | Netflix | 30 |
| Troll Tales | 1999 | ZDF | 26 |
| Trollhunters: Tales of Arcadia | December 23, 2016 | Netflix | 52 |
| Trollkins | September 12, 1981 | CBS | 13 |
| Trolls: The Beat Goes On! | January 19, 2018 | Netflix | 52 |
| Trolls: TrollsTopia | November 19, 2020 | Hulu, Peacock | 52 |
| Trollz | October 3, 2005 | TFOU | 27 |
| Tron: Uprising | May 18, 2012 | Disney Channel, Disney XD | 19 |
| Tropical-Rouge! Pretty Cure | February 28, 2021 | TV Asahi | 46 |
| TroTro | 2004 | France 5 | 78 |
| Trouble Chocolate | October 8, 1999 | — | 20 |
| True and the Rainbow Kingdom | August 11, 2017 | Netflix | 37 |
| True Beauty | — | — | — |
| True Tears | January 6, 2008 | — | 13 |
| True: Magical Friends | June 15, 2018 | Netflix | — |
| True: Wonderful Wishes | June 15, 2018 | Netflix | — |
| Trust Me, I’m a Genie! | December 8, 2010 | Télétoon+, CBBC, Canal+, Canal+ Family | 52 |
| Try Knights | July 30, 2019 | — | 12 |
| Trzy misie | 1982 | — | 26 |
| Tsubasa to Hotaru | March 6, 2015 | — | 7 |
| Tsubasa: Reservoir Chronicle | April 9, 2005 | NHK Educational TV | 52 |
| Tsubasa: Shunraiki | March 17, 2009 | — | 2 |
| Tsubasa: Tokyo Revelations | November 16, 2007 | — | 3 |
| Tsugumi Project | — | — | — |
| Tsugumomo | April 3, 2017 | — | 12 |
| Tsuide ni Tonchinkan | October 10, 1987 | Fuji Television | 43 |
| Tsuihō Sareta Shōnin wa Kin no Chikara de Sekai o Sukū | — | — | — |
| Tsuki ga Kirei | April 6, 2017 | — | 12 |
| Tsuki wa Higashi ni Hi wa Nishi ni | June 30, 2004 | — | 13 |
| Tsukihime, Lunar Legend | October 10, 2003 | — | 12 |
| Tsukimichi: Moonlit Fantasy | July 7, 2021 | Tokyo MX | 37 |
| Tsukipro the Animation | October 4, 2017 | — | — |
| Tsukumogami Kashimasu | July 22, 2018 | NHK General TV | 12 |
| Tsukuyomi: Moon Phase | October 4, 2004 | TV Tokyo, TV Osaka | 25 |
| TsumaSho | October 6, 2024 | — | 12 |
| Tsun Tsun Maid wa Ero Ero Desu | March 2, 2013 | — | 2 |
| Tsuredure Children | July 4, 2017 | — | 12 |
| Tsuribaka Nisshi | November 2, 2002 | TV Asahi | 36 |
| Tsuritama | April 13, 2012 | Fuji Television | — |
| Tsurune | October 22, 2018 | — | 26 |
| Tsurupika Hagemaru-kun | March 3, 1988 | — | 59 |
| Tsuyokiss | July 1, 2006 | — | 12 |
| Tubeclash | — | — | 46 |
| Tuca & Bertie | May 3, 2019 | Netflix | 30 |
| Tuiga | 2019 | — | 12 |
| Tumble Leaf | May 23, 2014 | Amazon Prime Video | 52 |
| Tune In to the Midnight Heart | January 6, 2026 | Kansai Telecasting Corporation | 12 |
| Tupu | April 11, 2005 | ZDF, France 3, Disney Channel, Super Écran | 26 |
| Turbo Dogs | October 3, 2008 | CBC Kids, Qubo | 26 |
| Turbo FAST | December 24, 2013 | Netflix | 52 |
| Turkey! Time to Strike | July 9, 2025 | — | 12 |