Artists starting with O
- Omar Montes
- Omar Naber
- Omar Offendum
- Omar Rodríguez-López
- Omar Rudberg
- Omar Ruiz
- Omar Santana
- Omar Souleyman
- Omar Sterling
- Omar Sterling (Paedae)
- Omara Portuondo
- Omarion
- OMB Peezy
- OMB Peezy & Sherwood Marty
- Ombladon
- Ombra (rapper)
- Ombre Cinesi
- Ombretta Colli
- Ombu
- OMC
- Ome Omar
- Omega
- Omega Crosby
- Omega El Fuerte
- Omega Storie
- Omegah Red
- Omegle Genius
- Omelly
- Omen
- Omen (American Band)
- Omen44 x Nipps (Buddha Brand) x Vikn (Tetrad The Gang Of Four)
- OmenXIII
- OmenXIII & Lil Peep
- OmenXIII & Purpdogg
- Omer Adam - עומר אדם
- Omer Adam - עומר אדם, Netta - נטע
- Omerettà the Great
- Omerta (USA)
- OMFG
- OMG
- OMG
- OMG Tanzania
- OMG(Otaku Music Group)
- OMGItsGuppey
- OMI
- Omie
- Omik K
- Omni
- Omnia
- Omnium Gatherum
- OMO-FERINA
- Omoi
- OMORIKUN
- Omri
- Omry
- Omski
- Omulu
- Omvendt Psykologi
- Omy De Oro
- Omy De Oro & Hozwal
- OmzoJNR
- On A Friday
- On An On
- On Broken Wings
- On Planets
- On The Fence
- On the Grind
- On The Might Of Princes
- On-The-Go
- ON1Y
- Onar
- Onar x Dawid Obserwator x Dudek P56
- Onat
- Onative
- ONCE A TREE
- Once Human
- Once On This Island
- Once Tiros
- Once Upon A Time Cast
- OnCue
- Onda Vaga
- Ondara
- Ondi Vil
- One & G2 & BewhY
- ONE (KOR)
- One Bad Pig
- One Be Lo
- One Chance
- One Day
- One Day as a Lion
- One Direction
- One Drop
- One Flew West
- One Hope
- One King Down
- One Less Reason
- One Life Crew
- One little plane
- One Man Army
- One Minute Silence
- One Mob
- One Night Only
- ONE OK ROCK
- One Path
- One Path & Recycled J