| The Angry Hippies |
| The Angry Kids |
| The Angry Lisas |
| The Animal Party |
| The Animal Warfare Act |
| The Animalhouse |
| The Animals |
| The Animals II |
| The Animist |
| The Anita Kerr Quartet |
| The Anita Kerr Singers |
| The Anix |
| The Anmer |
| The Anna Maze |
| The Anniversary |
| The Anointed Disciples |
| The Anointed Pace Sisters |
| The Anonymous |
| The Anonymous Chronicles |
| The Anonymous Donkey |
| The Anonymous Experiment |
| The Anonymous Muso |
| The Anonymous One |
| The Anorexic Olsen Twin |
| The Answer |
| The Antarctica Project |
| The Antfarm Quartet |
| The Anthem Project Songwriters |
| The Anthonio |
| The Anthropophobia Project |
| The Anti-Nowhere League |
| The Anti Retro Vinyls |
| The Antidote |
| The Antihero |
| The Antihero Lunacy |
| The Antinormals |
| The Antlers |
| The Antti Sarpila Quartet |
| The Antz |
| The Anxiety Sweepstakes |
| The AnyOne |
| The Anything Muppets |
| The Anywheres |
| The Apache Relay |
| The Apachi |
| The Apalachicola Sound |
| The Aparte Project |
| The Apartments |
| The Ape Tones |
| The Apemen |
| The Apers |
| The Apes |
| The Apex Theory |
| The Aphotic |
| The Apocalypse Complex |
| The Apolitical |
| The Apollo Project |
| The Apology |
| The AporiA |
| The Apostles |
| The Apostrophe Wrecks |
| The Appalachian Orchestra |
| The Appalachian Pickers |
| The Appalled |
| The Apparitionist |
| The Apparitions |
| The Apple Bros. |
| The Apple & DJay |
| The Applebaum Jazz Piano Duo |
| The Applejacks |
| The Apples |
| The Apples in Stereo |
| The Appleseed Cast |
| The Applicators |
| The Appraised |
| The Appreciation Post |
| The Appropriate Show |
| The April Family |
| The Aprilbird |
| The APX |
| The Aquabats |
| The Aquadolls |
| The Aquamen |
| The Aquarian Earth |
| The Aquarian Initiative |
| The Aquarius |
| The Aquatic Symphony |
| The Aquatones |
| The Ar-Kaics |
| The Arabian Prince |
| The Arachnids |
| The Arbors |
| The Arc Angels |
| The Arc Line |
| The Arc of Light |
| The Arcade Fire |
| The Arcanauts |
| The Arcane Insignia |
| The Arcane Order |
| The Archers Bow |
