D
- Iva Toguri D'Aquino (Tokyo Rose) – radio broadcaster during World War II
- Carson Daly – television host
- Harry Danning – Major League Baseball All Star catcher
- Ted Danson – actor (Cheers)
- Lindsay Davenport – tennis player
- Baron Davis – professional basketball player
- Terrell Davis – professional football player
- Jonathan Dayton and Valerie Faris – husband and wife film directors (Little Miss Sunshine)
- Zack de la Rocha – singer, activist
- Tom DeLonge – Blink-182
- Brad Delson – musician (Linkin Park)
- Emily Deschanel – actress
- Cameron Diaz – actress (There's Something About Mary)
- Leonardo DiCaprio – actor
- Trent Dilfer – NFL quarterback
- Daz Dillinger – rapper
- Joe DiMaggio – baseball player
- Roy Edward Disney – billionaire, nephew of Walt Disney
- Tom Dumont – No Doubt's guitarist
- Nate Dogg – musician
- Snoop Dogg – rapper
- Canh Thong Do – Vietnamese American activist
- Ami Dolenz – actress (daughter of Micky Dolenz)
- Micky Dolenz – member of The Monkees
- Landon Donovan – soccer player
- Dr. Dre – musician, rap producer
- Mac Dre – rapper
- Dresta – rapper
- K. Eric Drexler – engineer
- Hilary Duff – actress, singer
- Isadora Duncan – dancer
- Ann Dunnigan – translator, actor, teacher
- Robert Duvall – actor
- Jermaine Dye – baseball player (Chicago White Sox)
- Dev – singer
Read more about this topic: List Of People From California