- Iron Kingdom -- Ironbase
- Ironblood -- IRP-3
- Irr. App. (Ext.) -- Irv Burgraff
- Irv Burton -- Irvine Arditti & Stephen Drury
- Irvine Arditti & The Arditti Quartet -- Irving Kahal
- Irving Kaufman -- Irwin Swack
- Irwin Swack -- Isa Krakowski
- Isa Krejci -- Isaac Castle
- Isaac Castle -- Isaac & James
- Isaac Johnson -- Isaac Reese
- Isaac Rehberg -- Isaac Zamora
- Isaac Zamora -- Isabel Gil Arenas
- Isabel Granada -- Isabel Soto La Marina
- Isabel Sykes -- Isabella Nawe
- Isabella Ortega -- Isabelle Carre
- Isabelle Caus -- Isabelle Olivier
- isabelle panneton -- Isaev
- Isah Hamani -- Isaiah Stewart
- Isaiah Toothtaker -- ISAN