Series Beginning with I
- I am a Hero
- I Doll U
- I My Me! Strawberry Egg
- I Turn
- I"s
- I'll/CKBC
- I'm home
- I'm the Villainess, So I'm Taming the Final Boss
- I-Chu
- I/O
- Ice
- ICS Saiu Kokusai Daigaku A-tou 302gou
- Idol Angel Yokoso Yoko
- IDOL BEAMS
- Idol Damashii The Hustle
- Idol Factory
- Idol Golden Legend
- Idol Kyogaku Eizo Collection
- Idol Memories
- Idol One
- Idol Tamago
- Idol x Warrior Miracle Tunes!
- IDOLiSH7
- Idoljihen
- IDOLY PRIDE
- iii Icecrin
- Iiris
- Iron Man
- Is -Infinite Stratos-
- ISLAND
- THE IDOLM@STER SideM
- The Idolmaster
- THE IDOLMASTER 765production
- THE IDOLMASTER Cinderella Girls
- THE IDOLMASTER MILLION LIVE