Artiesten op KilRock
| O’Jays |
| O.C. Smith |
| Oasis |
| Ocean |
| Octopus |
| Odyssey |
| Ofra Haza |
| Oh Sixteen Oh Seven |
| Ohio Express |
| Ohio Players |
| Old Shatterhand |
| Oleta Adams |
| Oliver Onions |
| Olivia Newton John |
| Olivia Newton John & The Electric Light Orchestra |
| Olympics |
| Omar |
| OMC |
| Ome Joop |
| Ome Joop, Dik Voormekaar, Harry Nak, Mijnheer De Groot, Bep & Toos |
| One More Time |
| Oppo |
| Opus |
| Orange Bicycle |
| Orange Peel |
| Orbital |
| Orchestral Manoeuvres In The Dark |
| Orchids |
| Orfeo |
| Original Blind Boys Of Alabama & Clarence Fountain |
| Original Cast Orchestra & Chorus by Gunther Schuller |
| Original Caste |
| Originals |
| Originals Of Sight & Sounds |
| Orioles |
| Orkest Zonder Naam, De Marketensters & De Musketiers |
| Orleans |
| Oscar Benton |
| Oscar Benton Blues Band |
| Oscar Harris |
| Oscar Harris & The Twinkle Stars |
| Oscar McLollie & His Honey Jumpers |
| Osibisa |
| Osmonds |
| Otis Leavill |
| Otis Redding |
| Ottawan |
| Oui 3 |
| Outfield |
| Outlaws |
| Outsiders |
| Overlanders |
| Owen Gray |
| Owen Paul |
| Ozark Mountain Daredevils |
| Ozzy Osbourne |
| Ozzy Osbourne & Elton John |