| The Atomic Bitchwax |
| The Atomic Fireballs |
| The Atomic Harvesters |
| The Atomic Planets |
| The Atomic Sunshine Project |
| The Atomic Years |
| The Atomica Project |
| The Atomics |
| The Attached Outsiders |
| The Attackbots |
| The Atteridgeville Happy Boys |
| The Attic |
| The Attic Getaway |
| The Attic Leaks |
| The Attics |
| The Attique Iqbal Project |
| The Attk Records |
| The Attraction |
| The Attractions |
| The Atypical Duo |
| The Au Go-Go Singers |
| The Au Pairs |
| The Aubreys |
| The Auburn Ransom |
| The Audible Collective |
| The Audio Conspiracy |
| The Audio Visual Drop Kicks |
| The Audiofeel Project |
| The Audition |
| The Auditorium |
| The Audreys |
| The Auduo |
| The August Accords |
| The August Guns |
| The August Madness |
| The Augusta Choir |
| The AURA |
| The Aura Rising |
| The Auratones |
| The Auric Design |
| The Aurora Project |
| The Aurora Sound |
| The Ausgezeichnet |
| THE AUSLANDAR |
| The Austin Klezmorim |
| The Austin Mo Xperience |
| The Austin Sisters |
| The Australian Jazz Quintet |
| The Australian Voices |
| The Australian Wayfarers |
| The Austringer |
| The Auteurs |
| The Authentic Art Hodes Rhythm Section |
| The Author of All Things |
| The Author of T.S. |
| The Authoritarian |
| The Autistic Guitarist |
| The Autistic Mystic |
| The Automatic |
| The Automatic Machines and Electric Boogaloo Orchestra |
| The Autono |
| The Autopsies |
| The Autos |
| The Autumn Defense |
| The Autumn Offering |
| The Autumns |
| The Auxiliary |
| The AV Klub |
| The Avalanches |
| The Avalon Big Band |
| The Avalons |
| The Avant Garden |
| The Avant Gardeners |
| The Avantgarde |
| The AVC |
| The Avelons |
| The Avener |
| The Avengers |
| THE AVENUE |
| The Avenues |
| The Average |
| The Average White Band |
| The Avett Brothers |
| The Avons |
| The Avra |
| The Awakened |
| The Awakening |
| The Aware |
| THE AWAY TEAM |
| The Awesome Lemon |
| The Awkward |
| The Awkward Composer |
| The Awkward Presence |
| The Awkward Sleep |
| The Awkward Years |
| The Axehead Journal |
| The Axial Age |
| The Axidents |
| The Axis |
| The Axis of Awesome |
