A
- Willie Aames – actor
- Paula Abdul – dancer and singer (American Idol)
- Ansel Adams – photographer
- Rick Adelman – NBA head coach (Houston Rockets)
- Jessica Alba – actress, model
- Helen Andelin – author (Fascinating Womanhood)
- Melissa Sue Anderson – actress
- Jennifer Aniston – actress (Friends)
- Ariane Andrew – professional wrestler/Valet for World Wrestling Entertainment
- Christina Applegate – actress
- Jon Appleton – composer
- Eve Arden – actress
- Billie Joe Armstrong – musician, lead vocalist (Green Day)
- Reginald "Fieldy" Arvizu – bassist (Korn)
- Maureen Arthur – actress (How to Succeed in Business Without Really Trying)
- Anastasia Ashman – writer
- Sean Astin – actor (The Lord of the Rings)
- Brad Ausmus – Major League Baseball player
- Tracy Austin – tennis player
Read more about this topic: List Of People From California