| The Swiss Family Robinson: Flone of the Mysterious Island | January 4, 1981 | Fuji Television | 50 |
| The Tale of the Outcasts | January 8, 2023 | — | 13 |
| The Tatami Galaxy | April 23, 2010 | — | — |
| The Testament of Sister New Devil | January 7, 2015 | — | 22 |
| The Third: Aoi Hitomi no Shōjo | April 13, 2006 | — | 24 |
| The Thousand Noble Musketeers | July 3, 2018 | — | 12 |
| The Three Musketeers | October 9, 1987 | NHK General TV | 52 |
| The Too-Perfect Saint | April 10, 2025 | — | 12 |
| The Tower of Druaga | April 1, 2008 | — | 24 |
| The Twelve Kingdoms | April 9, 2002 | NHK Satellite 2 Television | 45 |
| The Ultraman | April 4, 1979 | — | 50 |
| The Unaware Atelier Master | April 6, 2025 | — | 12 |
| The Unwanted Undead Adventurer | January 8, 2024 | — | 12 |
| The Vampire Dies in No Time | October 4, 2021 | — | 24 |
| The Vermillion Mask | October 10, 2026 | — | — |
| The Vexations of a Shut-In Vampire Princess | October 7, 2023 | — | 12 |
| The Villager of Level 999 | July 2, 2026 | — | 12 |
| The Villainess Is Adored by the Prince of the Neighbor Kingdom | January 11, 2026 | — | 12 |
| The Vision of Escaflowne | April 2, 1996 | TV Tokyo | 26 |
| The Wallflower | October 3, 2006 | TV Tokyo | 25 |
| The Warrior Princess and the Barbaric King | April 9, 2026 | — | 12 |
| The Water Magician | July 4, 2025 | — | 12 |
| The Weakest Tamer Began a Journey to Pick Up Trash | January 12, 2024 | — | 12 |
| The Witch and the Beast | January 12, 2024 | — | 12 |
| The Wonderful Adventures of Nils | January 8, 1980 | NHK General TV | 52 |
| The Wonderful Galaxy of Oz | October 5, 1992 | TV Tokyo | 26 |
| The Wonderful Wizard of Oz | October 6, 1986 | TV Tokyo | 52 |
| The World Ends With You The Animation | April 9, 2021 | — | 12 |
| The World God Only Knows | October 8, 2010 | TV Tokyo | 41 |
| The World Is Dancing | July 2, 2026 | — | 13 |
| The World Is Still Beautiful | April 6, 2014 | Nippon Television | 12 |
| The World of Narue | April 4, 2003 | — | 12 |
| The World Yamizukan | April 3, 2017 | — | 13 |
| The World's Finest Assassin Gets Reincarnated in a Different World as an Aristocrat | October 6, 2021 | — | 12 |
| The World's Greatest First Love | April 9, 2011 | — | 24 |
| The World's Strongest Rearguard | July 5, 2026 | — | 12 |
| The World's Strongest Witch | October 7, 2026 | — | — |
| The Wrong Way to Use Healing Magic | January 6, 2024 | — | 13 |
| The Yakuza's Guide to Babysitting | July 7, 2022 | — | 12 |
| The Yearling | November 8, 1983 | NHK General TV | 52 |
| The Yuzuki Family's Four Sons | October 5, 2023 | — | 12 |
| There Was a Cute Girl in the Hero's Party, So I Tried Confessing to Her | January 6, 2026 | — | 13 |
| There's No Freaking Way I'll be Your Lover! Unless... | July 7, 2025 | — | — |
| Thermae Romae | January 13, 2012 | — | — |
| This Art Club Has a Problem! | July 7, 2016 | — | 12 |
| This Boy Is a Professional Wizard | February 5, 2016 | — | 4 |
| This Monster Wants to Eat Me | October 2, 2025 | — | 13 |
| This Ugly yet Beautiful World | April 2, 2004 | TBS Television | 12 |
| Those Snow White Notes | April 3, 2021 | — | 12 |
| Those Who Hunt Elves | October 4, 1996 | — | 24 |
| Though I Am an Inept Villainess | July 12, 2026 | — | — |
| Three Leaves, Three Colors | April 11, 2016 | — | 12 |
| Thumbelina: A Magical Story | September 30, 1992 | — | 26 |
| Thunder 3 | July 9, 2026 | — | — |
| Thunderbirds 2086 | April 17, 1982 | — | 24 |
| Tico and Friends | January 16, 1994 | Fuji Television | 39 |
| Tide-Line Blue | July 6, 2005 | — | 13 |
| Tiger & Bunny | April 3, 2011 | — | 25 |
| Tiger Mask | October 2, 1969 | Nippon Television | — |
| Tiger Mask II | April 20, 1981 | — | 33 |