Rock
- Armchair Cynics
- Armchair Martian
- Armia
- Armor For Sleep
- Armored Saint
- Army Of Anyone
- Army Of Me
- Arno
- Arrival
- Ars Nova
- Arsonists Get All the Girls
- Arszyn and Columbus Duo
- Art Garfunkel
- Art Of Dying
- Art Of Noise
- Art Zoyd
- Art-School
- Arthur Brown
- Arthur Russell
- Artillery
- Artist Vs Poet
- Artless
- Artrosis
- Arvas
- Arzachel
- As Cities Burn
- As I Lay Dying
- As Tall As Lions
- Ascendicate
- Ascent Of Everest