- Iron Butterfly
- Iron Chic
- Iron City Houserockers
- Iron Cross (Arlington VA, oi-punk/hardcore band, early 80s)
- Iron Curtain (80s Post-Punk from California)
- Iron Deficiency (hardcore punk from France)
- Iron Fire
- Iron Heade
- Iron Heel
- Iron Horse (bluegrass band from Alabama)
- Iron Lung (American hardcore / powerviolence band)
- Iron Maiden (English heavy metal band)
- Iron Maiden (late 60s prog rock/doom metal band)
- Iron Maidens, The (All female Iron Maiden tribute band from California)
- Iron Maidnem (Hungarian Iron Maiden tribute band)
- Iron Mais
- Iron Man (heavy metal band from Maryland, USA)
- Iron Mask (Belgian power metal band)
- Iron Monkey (United Kingdom sludge metal)
- Iron Mountain (doom metal band from Detroit, MI)
- Iron Oaks
- Iron On
- Iron Reagan
- Iron Savior
- Iron Thrones
- Iron Tomb
- Iron Void
- Iron Years
- Iron Zephyr (Nebraskan Punk-Rock Band)
- Ironbase
- Ironbite (Heavy Metal Band)
- IRONBUNNY
- Ironhorse (Canadian rock band from 70’s)
- Ironic Beats
- iRonica
- Ironik (Québecois hip hop artist)
- Ironik (UK Urban artist)
- Ironix, The & Nullzweizwei
- Ironmouse
- Irons, Jack
- Irons, Jeremy with Goldberg, Whoopi, Marin, Cheech, and Cummings, Jim
- Irons, Troi
- Ironside, Nathan
- Ironstone
- Ironsword (Portuguese Heavy Metal)
- Irontom
- Irontom feat. Bruno, Aaron
- Ironvytas (Lithuanian rapper)
- Ironvytas & Blažytė, Raminta
- Ironweed (Stoner Metal Band from Albany / NY)
- Ironweed Project, The
- Ironwill (Heavy Metal, Turin, Piemonte, Italy)
- Irony of Fate (New Wave, Goth Rock)
- Irony of Fate (Switzerland, Metal)
- Irrational
- Irrational (Orlando, Florida based rock band)
- Irrelevant (Australian punk band)
- Irrenoffensive
- Irrepressibles, The
- Irrésistibles, Les
- Irresponsibles, The (From Adelaide, South Australia)
- Irreversible Entanglements
- Irreversible Mechanism
- IRRIS (South Korean girl group)
- Irrlicht
- Irrlichter, Die
- Irrlycht (German black metal)
- Irrwisch
- Irrwisch (Netherlands / Black Metal)
- IRS, The (UK rap group)
- IRU (Georgian pop singer Iru Khechanovi)
- irucaice
- IRUKA
- Irusta, Agustín
- Irvine, Andy
- Irvine, Andy & Brady, Paul
- Irvine, Jeremy, James, Lily, Brosnan, Pierce & Seyfried, Amanda
- Irvine, Weldon
- Irving
- Irving Aaronson
- Irving Casanova (Regional Mexican)
- Irving Manuel
- Irving, Amy
- Irving, Catriona
- Irving, Lonnie
- Irwansyah
- Irwin, Ashton
- Irwin, Big Dee
- Irwin, Big Dee & Little Eva
- Irwin, Fred