- The Idealist -- The Idiot Toaster
- The Idiots -- The Idle Hands
- The Idle Race -- The If You Wannas
- The IFS Philharmonic Orchestra -- The Iguanas
- The II Deep Allstars -- The Ill Funk Ensemble
- The Ill Geius -- The Illegal Movers
- The Illinois Jacquet All Stars -- The Illusionists
- The Illusions -- The Imaginary Band
- The Imaginary Friend -- The Immaculates
- The Immediate -- The Immortal Lee County Killers 3
- The Immortals -- The Impalas
- The Impellas -- The Imperial Monkey's
- The Imperial Orgy -- The Impossible 5
- The Impossible Dreamers -- The Imposters
- The Impostors -- The Improvisational Arts Quintet
- The Improvising Orchestra -- The In