- Olle Johnny
- OtherWorldRIo
- Olaadboy
- OVRTME
- Opie On the Beat
- Oscar Divine
- OutroEu
- Orchestr Karla Krautgartnera
- Ocean-biscuit
- Oral Moses
- OBZ
- OldSchoolBasterds
- October Blackwell
- OpalaRec
- OTW ED
- Okies From Muskogee
- OXO
- Onyx Family
- Odiogbaski
- Occupy Relate
- Odar
- Opaque Vision
- Original de Manzanillo
- OBREAKZ
- O-B-Tom
- OMS Mj
- OMP Allstars
- Olympe Records
- Otakar Brousek st.
- OldBoys
- Ornery
- Otpzanny
- Oliver Song
- Owun Siks
- Ojos
- og 5x narxx
- Okramio
- Ok.Kudo
- Offline Raiders
- Oskar Vilcrow
- Oversleep
- Olympic Antigua
- Olga Guðrún
- Orquestra Sabor Latino
- One Week Of Days
- OneK
- Original G
- Official Liontz
- 哦哦。
- OCHU SHEGGY
- One Director
- Official Music
- One Sound
- Oz Robù Trio
- 欧克oak
- Ocean B
- Omar Khayrat
- Ocean Wisdom
- OrigamiSwann
- Oso Sensei
- ODEEON
- OMENSWORN
- Orchestra Stedano Frigerio
- Omar LinX
- Onest Lyric
- Orchestra Eclipse
- Opor Praput
- Outage
- Ovlix
- OSLOCITYFUCKBOY
- 欧阳自成
- Odd Numbers
- Otsochodzi
- Olivia Murray
- Omnium
- Ohio The Rapper
- Ohly
- Oliver Land
- Omis Italy
- One Burning Match
- of Verona
- OMEGA Danzer
- Okun
- Oli Rees
- 欧阳原野
- Oahron
- O.N.O
- Original Cast Of Tenderloin
- Oliver Loenn
- Okfella
