| Transformers: EarthSpark | November 11, 2022 | Nickelodeon, Paramount+ | 10 |
| Transformers: Generation 2 | 1993 | — | 52 |
| Transformers: Prime | November 26, 2010 | Discovery Family | — |
| Transformers: Rescue Bots | December 17, 2011 | Discovery Family | 104 |
| Transformers: Rescue Bots Academy | December 8, 2018 | — | — |
| Transformers: Robots in Disguise | February 9, 2015 | Cartoon Network | 71 |
| Transformers: War for Cybertron Trilogy | July 30, 2020 | Netflix | 18 |
| Trash Truck | November 10, 2020 | Netflix | 28 |
| Traçando Arte | December 5, 2009 | TV Cultura, TV Rá-Tim-Bum | 39 |
| Treasure | September 13, 2000 | — | — |
| Tremenda Opción del Sábado | March 4, 2000 | Telemundo, Telemicro, Televisión Nacional de Chile, Chilevisión, Univision, Galavisión, UniMás, Antena 7, Mega TV, HITD-TV, Distrito Comedia, Corporación Estatal de Radio y Televisión+3 | — |
| Trese | June 11, 2021 | — | 6 |
| Triple Z | 1998 | Super RTL | 52 |
| Tripping the Rift | March 4, 2004 | Syfy | 39 |
| TripTank | April 2, 2014 | Comedy Central | 18 |
| 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 |
| TroTro | 2004 | France 5 | 78 |
| True and the Rainbow Kingdom | August 11, 2017 | Netflix | 37 |
| True Beauty | — | — | — |
| 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 |
| Trzy misie | 1982 | — | 26 |
| Tuca & Bertie | May 3, 2019 | Netflix | 30 |
| Tuiga | 2019 | — | 12 |
| Tumble Leaf | May 23, 2014 | Amazon Prime Video | 52 |
| Tupu | April 11, 2005 | ZDF, France 3, Disney Channel, Super Écran | 26 |
| Turbo Dogs | October 3, 2008 | CBC Kids, Qubo | 26 |
| Turn off the Light! | July 31, 2000 | NTV, TNT, TV-6, TVS | 210 |
| Turning Mecard | — | — | 188 |
| Turning Mecard God | — | — | — |
| Turning Mecard R | — | — | — |
| Turning Mecard W | — | — | — |
| Turtle Island | January 3, 2001 | Vrak.TV | 26 |
| Turu and the Wackies | September 12, 2022 | — | — |
| Tutenstein | November 1, 2003 | Discovery Kids | 39 |
| TV Funhouse | December 6, 2000 | Comedy Central | 8 |
| Tweety & Sylvester | — | — | 46 |
| Twelve Forever | July 29, 2019 | Netflix | 25 |
| Twende | — | Showmax | 13 |
| Twilight of the Gods | September 19, 2024 | — | 8 |
| Twin Spirit Detectives | — | — | — |
| TwinFizz Family | — | SBS TV | — |
| Twinkle, the Dream Being | December 5, 1993 | Broadcast syndication | 26 |
| Two Little Birds | — | Señal Colombia | — |
| Tähystäjätontun seikkailut | December 1, 1963 | Yle TV1 | 24 |
| Ugly Americans | March 17, 2010 | Comedy Central | 31 |
| Ultimate Spider-Man | April 1, 2012 | Disney XD | 104 |
| Ultra Scared | September 3, 2003 | M6 | 52 |
| Ultraforce | December 21, 1994 | USA Network | 13 |
| Ulysses 31 | October 10, 1981 | France 3 | 26 |
| Uncle Grandpa | September 2, 2013 | Cartoon Network | 156 |
| Underdog | October 3, 1964 | NBC, CBS | 124 |