- Otero, David & Mäbu
- Otero, David & Soto, Marta
- Otero, David & Taburete
- Otero, Manolo
- otetsu
- Otey, Lisa
- Otgoo
- Otha (Othalie Husøy)
- Other Ego
- Other Favorites, The
- Other Guys, The (Scottish A Cappella Group)
- Other Half, The (’60s San Francisco psychedelic rock band)
- Other Lives
- Other Men
- Other Minds (Alternative Rock Band)
- Other Ones, The (Australian-German band, hit single "Holiday")
- Other Tribe, The
- Other Two, The
- Other Voices (Italian goth)
- Other-ed
- Other, The (Horrorpunk band from Germany)
- Other, The (US punk rock band)
- Otherkin
- OTHERLiiNE (George Fitzgerald & Lil Silva)
- Others by No One
- Others, The (dubstep producer)
- Others, The (2000s UK rock band)
- Otherview
- Otherwise (US hard rock band)
- Otherwise feat. Costello, Ashley
- Othila (neofolk / ambient group)
- Othman Wahabi
- Othmane Bali
- Othmer, Julia
- Othon Bastos
- Otierre
- Otik (dance music)
- Otile Brown
- Otilia (Otilia Bruma)
- Otis Junior & Dr Dundiff
- Otis Stacks
- Otis, Johnny
- Otis, Johnny, Show, The
- Otis, Shuggie
- Otnicka (Electronic Musician)
- Oto
- oto (Pascal Hubert, Farid Dahalb & François Rousseau)
- Otoboke Beaver
- Otogi Banashi
- Otokogumi
- Otomo, Yoshihide
- OTP
- OTR (Downtempo electronic producer)
- OTR & Panama
- Otra Cara de la Nada, La
- Otra Fe, La
- Otra puse
- Otro Grupo, El
- Otro Mambo
- Otro Nivel
- Otro Yo, El (Argentine rock band)
- Otros Aires
- Otros Colores
- Ots, Georg
- Otsochodzi (polish MC)
- Otsochodzi feat. Rosalie.
- Otsochodzi feat. Szopeen
- Otsochodzi feat. Włodi
- Otsochodzi feat. Young Igi
- Otsuka, Ai
- Ott (UK producer/psychedelic dub multi-instrumentalist)
- OTT (late '90s Irish boyband)
- Ott, Alice Sara (pianist)
- Ott, Carey
- Ott, Christine
- Ott, Kerstin (German (Berlin) Singer)
- Ott, Kerstin & Fischer, Helene
- Ott, Kerstin, Carpendale, Howard
- Ott, Kerstin, Fischer, Helene
- otta
- Ottaviani, Giuseppe
- Ottaviani, Giuseppe & Burns, Christian
- Ottaviani, Giuseppe & England, Kyler
- Ottaviani, Giuseppe & Lumiere, Eric
- Ottaviani, Giuseppe & O’Callaghan, John
- Ottaviani, Giuseppe & Rene, Jennifer
- Ottaviani, Giuseppe feat. Aldea, Alana
- Ottaviani, Giuseppe feat. Faith
- Ottaviani, Giuseppe feat. Gallagher, Audrey
- Ottaviani, Giuseppe feat. Hurley, Shannon
