| The Northrop Project |
| The Northstar Orchestra |
| The Northway |
| The Northwest Fresh |
| The Norton Sisters |
| The Norwegian Radio Orchestra |
| The Notables |
| The Notations |
| The Notebook |
| The Nothings |
| The Notorious Autry Brothers |
| The Notorious B.I.G. |
| The Notorious BIG |
| The Notorious Cherry Bombs |
| The Notorious MSG |
| The Notre Dames |
| The Notselves |
| The Notting Hillbillies |
| The Notwist |
| The Nova Hawks |
| The Nova Jazz Orchestra |
| The Novas |
| The Novel Ideas |
| The Novelles |
| THE NOVEMBERS |
| The Novorodkens |
| The Novus |
| The Now |
| The Now Generation |
| The Now People |
| The Nu-Sounds |
| The Nuars |
| The Nuclear Whales Saxophone Orchestra |
| The Nudes |
| The Numb Ones |
| The Number Twelve Looks Like You |
| The NuNo |
| The Nutmegs |
| The Nuttree Quartet |
| The Nycer |
| The Nylons |
| The Nymphs |
| The O |
| The O.C. |
| The O.C. Supertones |
| The O.C. Supertones |
| The O'Jays |
| The O'Kanes |
| The O'Kaysions |
| The O'My's |
| The OMys |
| The O'Neill Brothers |
| The Oak Ridge Boys |
| The Oakstones |
| The OBGMs |
| The Observers |
| The Obsidian Blue |
| The Ocean |
| The Ocean Band |
| The Ocean Blue |
| The Ocean Front |
| The Ocean Party |
| The Octavarium Orchestra |
| The Octet |
| THE OCTOPUS |
| The Odd Couple |
| The Oddictions |
| The Odds |
| The Oedipus Complex |
| The Off Days |
| The Official Receivers |
| The Offspring |
| The Ogd Trio |
| The Oh Hellos |
| The Oinker Sisters |
| The Okee Dokee Brothers |
| The Olarn Project |
| The Old Christmas Studio |
| The Old Dead Tree |
| The Old Dogs |
| THE OLD ISE |
| The Oliver Moore Band |
| The Olivia Project |
| The Olivia Tremor Control |
| The Olliephonic Horns |
| The Olympians |
| The Olympics |
| The OM Sound |
| The Omen |
| The OMG Girlz |
| The Ominous Seapods |
| The Omy |
| The On the Line All-Stars |
| The Once |
| The One |
| The One AM Radio |
| The One Hundred |
| The One Keon |
| The One World Ensemble |
| The Oneill Twins |
