- The Oscars -- The Other
- The Other 5 -- The Other Famous People
- The Other Flesh -- The Other Side
- The Other Side -- The Others (Rap)
- The Otherside -- The Out Crowd
- The Out-Islanders -- The Outer Vibe
- The Outer Vibe -- The Outlaws
- The Outlaws of Zen -- The Outside
- The Outside Agency -- The Outta Sites
- The Outtengrand Orchestra -- The Overkill Kid
- The Overlanders -- The Owl Ensemble
- The Owl Town Pipes And Drums -- The Oxymorons
- The Oyster Band -- The Pachinko Fake
- The Pacific -- The Package
- The Packards -- The Page Boys
- The Page-Rold Band -- The Painted Birds
- The Painted Faces -- The Palata Singers
- The Palatin Project -- The Palmyra Players
- The Pamela Tiffins -- The Panda Band