- In-Flight Safety
- In-Fused (industrial)
- In-Moment, The
- In-Mood feat. Juliette (project)
- In-Quest (Belgian death metal)
- In-Sane
- In‐Grid (Italian dance/pop singer)
- In, Los
- In:Aviate
- in:tides
- In/Humanity
- IN2IT
- Ina-Ich
- Inaba, Koshi
- Inactive Messiah
- Inadaptats
- Inagaki, Jiro & Soul Media
- Inagaki, Junichi
- Inai, Keiji
- Inai, Keiji
- Inaizumi, Lyn (Japanese jazz/soul singer)
- Inamere
- Inanimate Existence (Bay Area Techincal Death Metal)
- inaud1bl3
- Inayat, Omer (Pakistani singer)
- Inborn Suffering
- Inbound
- Inbred Knucklehead (hardcore/country/ska band from Roma/California/Sweden)
- Inbreds, The (Canadian Indie Rock band.)
- INC (Spanish Band)
- inc. (American Producer Duo)
- inc. no world
- Inc., Art
- Inca Son
- Incantation (American death metal band)
- Incantation (plays traditional tribal and other South American music)
- Incantation (electronic act)
- Incarnate (Dutch thrash metal/hardcore band)
- incarNations
- Incarnations (Incarnations - a band by Daniel Collás, Bart Davenport & Quinn Luke)
- Incase We Crash (Pop Punk Band)
- Incendiary (NY hardcore band)
- Incense (Dutch 1990/2000s indie pop/rock group)
- İncesaz
- Inchtabokatables, The
- Incinery (Thrash Metal band from Nottingham, UK)
- Incise
- Incision (Pacific Northwest Hardcore from Vancouver)
- Incisive
- Incite (American heavy metal band)
- Inclination (US hardcore band from Louisville, KY)
- InClose
- Inclusion (Polish alternative metal band)
- Incognito (UK acid jazz band)
- Incognito feat. Biondi, Mario
- Incognito feat. Biondi, Mario & Khan, Chaka
- Incognito feat. Bluey
- Incognito feat. Brown, Jocelyn
- Incognito feat. Haynes, Vanessa
- Incognito feat. Imaani
- Incognito feat. Maysa
- Incognito feat. Mo Brandis
- Incognito feat. Momrelle, Tony
- Incognito feat. Wonder, Stevie
- Incoherent, Erin
- Incolore, Nuit
- Incommunicado (Italian progressive rock band)
- Incommunicado (Pittsburgh punk band)
- Incomparables de Tijuana, Los
- Inconnus, Les
- Inconsciente Colectivo
- Inconscientes
- InContext
- Incontrollabili serpenti
- Incrave
- Incredibad
- Incredible Bongo Band
- Incredible Moses Leroy, The
- Incredible Polo (french singer, composer & beatboxer)
- Incredible Staggers, The
- Incredible String Band, The
- Incredible' Me
- Incredibles, The (60s soul)
- Incríveis, Os
- Incubator
- Incube (Russian Drum and Bass)
- Incubite
- Incubus (US alternative rock band)
- Incubus (Dutch techo duo Jayant Edoo & Patrick van Kerckhoven)
- Incubus (Louisiana death/thrash metal band, now Opprobrium)
