| The Allman Brothers |
| The Allman Brothers Band |
| The Allstars Collective |
| The Allure |
| The Ally Dogs |
| The Almanac Singers |
| The Almas |
| The Almighty |
| The Almighty GloryUs |
| The Almighty Rhombus |
| The Almighty RSO |
| The Almighty Terribles |
| The Almost |
| The Aloha Steamtrain |
| The Alohas |
| The Aloof |
| The Aloom Project |
| The Alpha Bet |
| The Alpha Conspiracy |
| The Alphabet Girls |
| The Alphabet Zero |
| The Alphas |
| The Alpine |
| The Alpines |
| The Alshire Singers |
| The Also |
| The Alta California Orchestra |
| The Altars |
| The Alter Boys |
| The Altered |
| The Alterior |
| The Alternate Routes |
| The Alternating Currents |
| The Alternative Facts |
| The Altitude |
| The Altogether |
| The Altruist |
| The Aluminum Group |
| The Amatucci Quintet |
| The Amazing Rhythm Aces |
| The Amazons |
| The Ambassador |
| The Ambassadors |
| The Amber |
| The Ambient Light |
| The Ambition |
| The Ambition Company |
| The Ambitious Orchestra |
| The Amblers |
| The Amboina Serenaders |
| The Amboy Dukes |
| The Ambrosia Effect |
| The Ambrosian Singers |
| The Ambulance |
| The AMC Orchestra |
| The American Analog Set |
| The American Band of the Allied Expeditionary Force |
| The American Band of the Supreme Allied Command |
| The American Boychoir |
| The American Breed |
| The American Buffalo |
| The American Frontier |
| The American Hotel System |
| The American Plague |
| The American Scene |
| The American Storytellers |
| The American Theatre Orchestra |
| The Americanos |
| The Americans |
| The Americojones Experience |
| The Ames Brothers |
| The Amethyst |
| The Amish Heaters |
| The Amity Affliction |
| The Amixers |
| The Ammy |
| The Amnesiacs |
| The amnesiacs & the amnesiacs |
| The Amorphous Band |
| The Amorphous Strums |
| The Ampersands |
| The Amplifetes |
| The Amps |
| The Anachronisms |
| The Anachronistics |
| The Anaconda Vampire Bats |
| The Analog Girl |
| The Analogs |
| The Ananda Project |
| The Anarchy |
| The Anastomoses |
| The Anatomy Of |
| The Ancestry Program |
| The Anchor |
| The Anchoress |
| The Anchorites |
| The Ancient Moons |
| The Ancient Novelties |
| The Ancient Unknown |
| The And/Ors |
