A
- Wil-Dog Abers (Ozomatli)
- Bryan Adams
- Barry Adamson (Magazine, Visage, Nick Cave and the Bad Seeds)
- Martin Eric Ain (Celtic Frost, Hellhammer)
- Dominic Aitchison (Mogwai)
- Kianna Alarid (Tilly and the Wall)
- Mike de Albuquerque (Electric Light Orchestra)
- Juan Alderete (Racer X, The Mars Volta)
- Miša Aleksić (Riblja Čorba)
- Dave Alexander (The Stooges)
- Mike Alexander (Evile)
- Rustee Allen (Sly and the Family Stone)
- Merle Allin (The Murder Junkies)
- Karl Alvarez (Descendents)
- Thierry Amar (Godspeed You! Black Emperor, Thee Silver Mt. Zion Memorial Orchestra & Tra-La-La Band, Black Ox Orkestar)
- Jeff Ament (Pearl Jam)
- Marten Andersson (Lizzy Borden, George Lynch)
- Simon Andersson (Pain of Salvation)
- Mark Andes (Heart, Spirit)
- Felipe Andreoli (Angra)
- Dan Andriano (Alkaline Trio)
- Tom Angelripper (Sodom)
- Josh Ansley (Catch 22, Streetlight Manifesto, HURT)
- Michael Anthony (Van Halen, Planet Us, Sammy Hagar and the Waboritas, Chickenfoot)
- James Anton
- Daniel Antonsson (Dark Tranquillity)
- Johnny April (Staind)
- Tom Araya (Slayer)
- Doug Ardito (Puddle of Mudd)
- Jennifer Arroyo (Kittie)
- Reginald Arvizu (Korn, L.A.P.D.)
- Talena Atfield (Kittie)
- Melissa Auf der Maur (Hole, The Smashing Pumpkins, Auf Der Maur)
- Eric Avery (Jane's Addiction, Alanis Morissette)
- John Avila (Oingo Boingo)
- Kevin Ayers (Soft Machine)
- Pedro Aznar (Serú Girán, The Pat Metheny Group)
Read more about this topic: List Of Bass Guitarists