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- Carson Palmer – football quarterback (Oakland Raiders)
- Gwyneth Paltrow – actress
- Leon Panetta – White House Chief of Staff (under Bill Clinton)
- Jerry Paris – actor (The Dick Van Dyke Show)
- Richard Park – ice hockey forward, New York Islanders
- Harry Partch – composer
- George S. Patton – military commander
- Gary Payton – professional basketball player (Miami Heat)
- Gregory Peck – actor
- Sam Peckinpah – director
- Sean Penn – actor
- Chris Penn – actor
- Katy Perry – singer
- Melina Perez – professional wrestler
- Michelle Pfeiffer – actress
- Laci Peterson – murder victim
- Paul Pierce – professional basketball player (Boston Celtics)
- Jim Plunkett – football quarterback (Oakland Raiders)
- Chad Power – martial artist
- Freddie Prinze, Jr. – actor
- Tayshaun Prince – professional basketball player (Detroit Pistons)
- Jade Puget – musician (AFI)
Read more about this topic: List Of People From California