- I DOLL U Costume
- I Dream of Jeannie Costume
- I Love Lucy! Costume
- I Lunes e la sfera di Lasifer Costume
- I-Chu Costume
- I.N.V.U. Costume
- Ib Costume
- Icchibanketu Costume
- Ice Costume
- Ice Age Costume
- Ice Scream Costume
- Ichiro Heian! Costume
- ID-0 Costume
- Idol Death Game TV Costume
- Idol Incidents Costume
- IDOL Memories Costume
- Idol Pretender Costume
- IDOLiSH7 Costume
- If My Heart Had Wings Costume
- Iinazuke Kyoutei Costume
- Ijiwaru Houteishiki Costume
- Ijou Chitai: Kanojo wa Boku no Jikken Dorei Costume
- Ikemen Royal Palace ♦Midnight Cinderella Costume
- Ikki Tousen Costume
- Ikkitousen Costume
- Ikkitousen: Dragon Destiny Costume
- Ikkitousen: Xross Impact Costume
- Ikkitousen: Xtreme Xecutor Costume
- Ikusa Otome Valkyrie G ~Ikusa Otome-tachi no Tasogare~ Costume
- Ilegenes: Giyoku no Koukyoukyoku Costume
- Im Costume
- Imadoki Battle Fantasy ~Yuusha to Maou no Dousei Seikatsu~ Costume
- Imarine project Costume
- Imawa no Kuni no Alice Costume
- Immortal Regis Costume
- Imojiri Costume
- Imouto o Kegashita Kioku Costume
- Imouto sae Ireba Ii. Costume
- Imouto sae Ireba Ii. (ONA) Costume
- In Another World With My Smartphone Costume
- In Search of Lost Future Costume
- Inazuma Eleven Costume
- Inazuma Eleven Ares no Tenbin Costume
- Inazuma Eleven Go: Galaxy Costume
- Indiana Jones Costume
- Indigo Prophecy Costume
- Indivisible Costume
- inFamous: Second Son Costume
- Infini-T Force Costume
- Infinity Blade Costume
- Ingènuo Costume
- Injustice 2 Costume
- Injustice: Gods Among Us Costume
- Innocent Costume
- Inshoku Chikan Densha Costume
- Inside Out Costume
- Inspector Gadget Costume
- Internet Explorer Costume
- Interview with the Vampire Costume
- Interviews with Monster Girls Costume
- Into the Woods Costume
- Inu Jikan Costume
- Inubaka Costume
- Inugami-san to Nekoyama-san Costume
- Inuyasha Costume
- Invaders of the Rokujyōma! Costume
- Invincible Steel Man Daitarn 3 Costume
- Invisible, Inc. Costume
- Iono-sama Fanatics Costume
- Iris Zero Costume
- Irisu Kyouko Costume
- Iroha Costume
- IRoid: Koi no Yuukou Frontier Costume
- Iron Man Costume
- Iron Man 2 Costume
- Ironfist Chinmi Costume
- Irotoridori no Mirai Costume
- Is Costume
- IS (Infinite Stratos) Costume
- Is It Wrong to Try to Pick Up Girls in a Dungeon Costume
- Is the Order a Rabbit Costume
- Is This a Zombie Costume
- IS: Infinite Stratos Costume
- IS: Infinite Stratos 2 Costume
- IS: Otoko demo Onna demo nai Sei Costume
- Island Costume
- Issho ni Gohan Costume
- Isuca Costume
- It's My Life Costume
- Itsudatte Bokura no Koi wa 10 cm Datta. Costume
- Ixion Saga DT Costume
- Iyada nante Iwasenai Costume
- iZombie Costume
- Izumo Costume
