| Otis & Shugg |
| Otis Spann |
| Otis Stacks |
| Otis Stokes |
| Otis Taylor |
| Otis Webster |
| Otis Williams & the Charms |
| Otiz Rhymez |
| OTM Huntcho |
| Otneall Prise |
| Oto Gris |
| Oto Nemsadze |
| Otomo Yoshihide |
| Otosan |
| OTOY |
| OTR |
| Otro |
| Otros Aires |
| OTSDR |
| Otsochodzi |
| Ott Lepland |
| Ottavio Dantone |
| Ottawan |
| Ottawans |
| Ottenhiem Potboiler |
| Ottewell |
| Ottile Patterson |
| Ottilie Patterson |
| Ottmar Liebert |
| Otto |
| Otto Brandenburg |
| Otto Hardwick |
| Otto Knows |
| Otto Normal |
| Otto Ohm |
| Otto Patrick |
| Otto Price |
| Otto's Daughter |
| Otto Serge |
| Otto Sieben |
| Otto von Wernherr |
| Otto Waalkes |
| Otto Weiss |
| Ottoman Turks |
| OTW |
| Otway & Barrett |
| Otyg |
| Otzeki |
| Otzi, Deejay |
| Otzzo |
| Ou E Zoe |
| Ou Est le Swimming Pool |
| OUAT |
| Oubliette |
| Ougie G |
| Ougrik, Olia |
| Oui |
| Oui 3 |
| Ouici |
| Ouija |
| Oujdi |
| Ouje-Bougoumou Community |
| Oumar |
| Oumou Sangare |
| Our Fears |
| Our Fire |
| Our Heart's Hero |
| Our Help Hope In Cadence |
| Our Lady Of Pompei Children's Chorus |
| Our lady peace |
| Our Last Night |
| Our Last Trial |
| Our Mothers Daughters |
| Our Music Is Art |
| Our Native Daughters |
| Our Oceans |
| Our Walking Hour |
| Ouran High School Host Club |
| Ourglass |
| Ours |
| Ours |
| Ous-D-Ous |
| Ousel |
| Oushnik |
| Ousmane Danedjo |
| Ousu Leigh |
| Out For Summer |
| Out Hud |
| Out of Date |
| Out Of Eden |
| Out of My Hair |
| Out of Nowhere |
| Out of Office |
| Out of Phase |
| Out Of The Grey |
| Out of the Nowhere |
| Out of Tune |
| Out Of Your Mouth |
| Out to Win |
| Outasight |
