The California Psychological Association (CPA) is a 501(c)(6) non-profit professional association for licensed psychologists and others affiliated with the delivery of psychological services.

CPA was founded in Los Angeles in 1948 initially to work for the licensure of psychologists. As the role of California psychologists expanded over the years, so did CPA.  To more closely interact with the state legislature, CPA moved from Los Angeles to Sacramento in 1989, and has sponsored many legislative proposals that have resulted in greater access to mental health care services for the consumer and extended protection of the rights of psychologists to practice to the full extent allowed by law.

In addition to the role of advocate for the profession of psychology, CPA's members regularly provide free public service through programs such as its Public Education Campaign and its well-respected disaster response service. Additionally, CPA works closely with the media to provide timely and accurate information on a variety of issues to increase the understanding of human behavior.