Chaminade College Preparatory is a private Catholic preparatory school with two campuses in the San Fernando Valley region of Los Angeles, California, United States. Named after Society of Mary founder Blessed William Joseph Chaminade, Chaminade College Preparatory consists of a middle school (encompassing grades 6–8) located in Chatsworth and a high school (encompassing grades 9–12) located in West Hills. It is located in the Roman Catholic Archdiocese of Los Angeles. It is a member of the approved Secondary Schools of the University of California.