- Against Me!
- Against the Current
- Agalloch
- Agathocles
- Agathodaimon
- Age of Chance
- Agent Blue
- Agent Fresco
- Agent Orange
- Agent Steel
- The Aggrolites
- The Aggrovators
- Agitation Free
- Agitpop
- Agnes
- Rikk Agnew
- Agnostic Front
- The Agonist
- Agoraphobic Nosebleed
- Agoria
- Mina Agossi
- à;GRUMH…
- Matias Aguayo
- Antonio Aguilar
- Pepe Aguilar
- Christina Aguilera
- Agust D