- Acorazado Potemkin
- Acosta Russel
- Acoustic Alchemy
- Acoustic Reserve
- Acoustic Revolution
- Acoustic Sin
- Acousticbrony
- Acrania
- Acranius
- Acrassicauda
- Acres
- Acres Of Lions
- Across Five Aprils
- Across Silent Hearts
- Across The Border
- Across The Sky
- Across The Sun
- Act
- Act As If
- Act As One
- Acting Like Heroes
- Action Action
- Action Bronson
- Action Design
- Action Item
- Action Pact
- Actionslacks
- Active Child
- Active Member
- Active01
- Actors Band
- Actual Tigers
- Acumen Nation
- Acústica
- Acústica 7
- Acusticos E Valvulados
- Ad De Laat
- Ad Hominem
- Ada Band
- Ada Jones And Billy Murray
- Ada Milea
- Adagio
- Adair
- Adair Elizalde
- Adair Lion
- Adal Ramones
- Adalberto Alvarez
- Adalberto Santiago
- Adaliah
- Adaline