| Name | Roles |
|---|---|
| Irwin, Nanci | Performer |
| Irwin, Rick | Performer |
| Irwin, Robin | Performer |
| Irwin, Trudy | Performer |
| Irwin, Will | Music, Book, Conductor (4) |
| Iryo, Rumi | Performer (5) |
| Isaac, Alberto | Lyrics |
| Isaac, Gerald | Performer |
| Isaac, Graeme | Music, Lyrics, Performer |
| Isaac, Robyn | Performer (2) |
| Isaac, Samara | Performer (2) |
| Isaacs, Adam | Performer |
| Isaacs, Brad | Music, Lyrics, Book |
| Isaacs, James | Liner_Notes (4) |
| Isaacs, Pamela | Performer (3) |
| Isaacs, Sonya | Performer |
| Isackson, Mick | Performer |
| Iscove, Adam | Music, Lyrics |
| Isen, Richard | Music |
| Isenegger, Nadine | Performer (2) |
| Isetti, Derek | Performer |
| Ishee, Suzanne | Performer |
| Isherwood, Charles | Liner_Notes (2), Performer |
| Isherwood, Christopher | Liner_Notes |
| Ishibashi, Chisato | Performer |
| Ishida, Masaya | Lyrics, Book |
| Ishii, Erika | Performer |
| Ishii, Kazutaka | Performer (5) |
| Ishii, LaSalle | Performer |
| Ishikawa, Zen | Performer (3) |
| Ishimaru, Kanji | Performer (8) |
| Ishitomi, Yumiko | Performer |
| Ishiura, Dana | Performer (2) |
| Ishizaki, Emiko | Performer |
| Ishizuka, Takao | Producer |
| Ishmael, Clement | Conductor, Music_Director |
| Ishu, Kayoko | Performer |
| Isia | Performer |
| Isidro, Agot | Performer |
| Isidro, Tiago | Performer (2) |
| Ising, Rudy | Music, Vocal_Arrangements, Producer, Performer |
| Islam, Yusuf | Performer |
| Islay, Kim | Performer |
| Isley Brothers, The | Performer |
| Ismail, Iskanda | Orchestrations |
| Ismail, Iskandar | Music, Orchestrations |
| Ismail, Iskander | Orchestrations, Producer |
| Ismay, Kim | Performer (2) |
| Isobell, Alistair | Performer |
| Isokääntä, Matti | Performer |