Salesian College Preparatory is a private, Roman Catholic, co-educational, college-preparatory high school in Richmond, California, United States. Established in 1927, it is part of the Salesians of Don Bosco and is located in the Roman Catholic Diocese of Oakland.

The Diocese of Oakland is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church in the San Francisco Bay Area of California in the United States. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archbishop of San Francisco.