All Anime List "u" at Gogoanime
- UN-GO: Chapter of Inga
- Undead Murder Farce
- Undead Unluck
- Under Ninja
- UniteUp!
- UniteUp! Bond Special - LEGIT & JAXX/JAXX Edition
- UniteUp! -Uni:Birth-
- Unnamed Memory
- Unnamed Memory Season 2
- UPO
- Upotte!!
- Upotte!!: Miatte Waratte
- UQ Holder!
- Urahara
- Urara Meirocho
- Urashimasakatasen no Nichijou
- Urawa no Usagi-chan
- Urusei Yatsura
- Urusei Yatsura
- Urusei Yatsura (2022) 2nd Season
- Urusei Yatsura Movie 1: Only You
- Urusei Yatsura Movie 2: Beautiful Dreamer
- Urusei Yatsura Movie 3: Remember My Love
- Urusei Yatsura Movie 4: Lum The Forever
- Urusei Yatsura Movie 5: Kanketsu-hen
- Urusei Yatsura Movie 6: Always My Darling
- Urusei Yatsura OVA
- Urusei Yatsura: The Shougaibutsu Suieitaikai
- Usakame
- Usakame Special
- Ushio and Tora
- Ushio and Tora
- Ushio & Tora: 2nd Season
- Usuzumizakura: Garo
- Uta no☆Prince-sama♪ Maji Love 2000%: Shining Star Xmas
- Uta no☆Prince-sama♪ Maji Love Kingdom Movie