Rosary Academy is a Roman Catholic all-girls college-preparatory high school located in Fullerton, California, United States. Owned and operated by the Diocese of Orange, it is accredited by the Western Catholic Educational Association and the Western Association of Schools and Colleges, and is a member of the National Catholic Educational Association. Rosary's brother school is Servite High School and its sister school is Cornelia Connelly High School. Rosary offers a needs-based scholarship program as well as scholarships in various areas to incoming freshman students.