| OCotta! |
| OCP Choir |
| OCP Session Choir |
| OCR |
| Ocra |
| OCRAN |
| Ocre |
| Ocres de Nante |
| OCROPOID |
| OCS |
| Ocshn |
| Ocsider |
| OCSOB |
| Ocsoosu |
| Oct ASTROPACK |
| OCT7 |
| OCTA DAZE |
| OCTAABER |
| Octabits |
| Octabo |
| Octagramophone |
| Octahvia |
| Octals |
| Octane |
| OctaneThisThatGas |
| Octanine |
| OctanteThisThatGas |
| Octar |
| Octav Ponto |
| Octava Avenida |
| Octavaphant |
| Octavate |
| Octave |
| Octave & Polo Rakun |
| Octave Droplets |
| Octave Lissner |
| Octave Minds |
| Octave Noire |
| Octave One |
| Octave One |
| Octave Praise |
| Octavean |
| OCTAVESHOCK |
| Octavia |
| Octavia Harp Ensemble |
| Octavia KAY |
| Octavia Petrut |
| Octavia Praise |
| Octavia Sperati |
| Octavia Wakes |
| Octavia Yearwood |
| Octavian |
| Octavian waste |
| Octavianus Audy Ponto |
| OCTAVIO |
| Octavio Bugni featuring Sabina Witt |
| Octávio Cabuata |
| Octavio Cardozzo |
| Octavio Colman |
| Octavio Cuadras |
| Octavio Diana |
| Octavio F. G. |
| Octávio Furtado |
| Octavio Hernández |
| Octavio Jurado |
| Octavio mai |
| Octavio Ortega Rdz |
| Octavio Silva |
| Octavio Suñé |
| Octavio Velázquez |
| Octavius Blythe |
| OctavMaladoi |
| Octavo Canto |
| Octavo Pecado Crew |
| OCTAVO ROJO |
| Octayvian |
| Octbrfrst |
| Octheproducer |
| Octibus |
| Octilary & Myleeh |
| OCTiV |
| Octnmrack |
| OCTO |
| OCTO ICON |
| Octo Made |
| OCTO MC |
| Octo Octa |
| Octoba 7ven |
| October |
| October 15 |
| October 31 |
| October and The Eyes |
| October Beach Club |
| October Blood |
| October Burns Black |
| October Dogs |
| October Drift |
| October Ember |
| October Ends |
| October Evans |
