Bands and authors on letter O
- Ochs Phil
- Osbourne Ozzy
- Orgy
- Olsen Twins
- Organized Konfusion
- Outlandish
- On Thorns I Lay
- O-Town
- O.A.R . (Of A Revolution)
- Oar
- Oasis
- Obituary
- Ocean Blue
- Ocean Colour Scene
- Odds
- Offspring
- Oingo Boingo
- Overkill
- Oliver Onions
- Opeth
- Ol Skool
- Outlawz
- O.C.
- Oakey Philip And Moroder Giorgio
- Obala Daleka
- Obispo Pascal
- Obk
- Obscure Disorder
- Obsession Indecent
- Obtained Enslavement
- Oceans Of Sadness
- Octavia
- October Project
- of The Wand And The Moon
- Off Broadway