All Anime List "i" at Gogoanime
- Interstella5555: The 5tory of The 5ecret 5tar 5ystem
- Interstellar Wanderer
- Inu X Boku Secret Service
- Inu X Boku Secret Service Special
- Inu-Ou
- Inugami-san to Nekoyama-san
- Inugami-san to Nekoyama-san: Nekoyama-san to Onsen Ryokou
- Inukami!
- Inukami! The Movie: Tokumei Reiteki Sousakan Karina Shirou!
- Inuki Kanako Zekkyou Collection: Gakkou ga Kowai!
- InuYasha
- InuYasha the Movie: Affections Touching Across Time
- InuYasha the Movie 2: The Castle Beyond the Looking Glass
- InuYasha the Movie 3: Swords of an Honorable Ruler
- InuYasha the Movie 4: Fire on the Mystic Island
- InuYasha: The Final Act
- InuYasha: Kuroi Tessaiga
- Inuyashiki: Last Hero
- Ippatsu Kiki Musume
- Ippon Bouchou Mantarou
- Ippou Nippon Mukashibanashi
- Iria: Zeiram The Animation
- Iriya no Sora, UFO no Natsu
- Irodorimidori
- Iroduku: The World in Colors
- Infinite Stratos
- Infinite Stratos 2
- IS: Infinite Stratos 2: Long Vacation Edition - The Memories of One Summer
- IS: Infinite Stratos 2 - Infinite Wedding
- IS: Infinite Stratos 2 - World Purge
- IS: Infinite Stratos: A Sextet Yearns to Be in Love
- Isekai Cheat Magician
- Isekai Cheat Magician: Special
- I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too
- Isekai Izakaya: Japanese Food From Another World
- Isekai Quartet