- [iks]
- I Musici de Montréal
- Ibert, Jacques
- Ibrahim, Kristie
- Ichiyanagi, Toshi
- Idées heureuses, Les
- Illica, Luigi
- Ingham, Michael
- Ingham, Richard
- Ingólfsson, Atli
- Instruments of Happiness
- International Contemporary Ensemble
- Ionesco, Eugène
- Iosch-Lorcini, Marie
- Irino, Yoshiro
- Isami, Yuki
- Isherwood, Nicholas
- Ishii, Maki
- Ittukallak, Lisa-Louise
- Ittukallak, Winnie
- Ives, Charles
- Ives Ensemble
- Iwaasa, Rachel Kiyo