Mater Dei is a co-educational Catholic college preparatory high school located in Santa Ana, CA. Rooted in our tradition of Honor, Glory, and Love, we serve a diverse student community committed to knowledge, faith, and service.

Mater Dei is a distinguished destination of excellence in academics and technology, the arts, faith and service, campus life, and athletics. We are proud to be Orange County’s oldest and largest Catholic high school.

Mater Dei High School is a Catholic, co-educational, college preparatory high school of the Diocese of Orange, California. Our mission is to provide a holistic education rooted in Catholic faith, values, and the tradition of Honor, Glory, and Love.

Founded in 1950, Mater Dei is more than a high school. We are a community built on Catholic fellowship and intellectual rigor, dedicated to developing our students' talents as they pursue their dreams of academic excellence, artistic distinction, athletic glory, and spiritual growth.

Mater Dei offers a comprehensive academic program in college prep, honors, and Advanced Placement. Our robust elective course catalogue provides a custom experience for students' unique interests and needs.

Mater Dei High School is a Catholic, co-educational, college preparatory high school of the Diocese of Orange, California. Our mission is to provide a holistic education rooted in Catholic faith, values, and the tradition of Honor, Glory, and Love.

Students wishing to be considered for admission to Mater Dei High School must complete an application through our secure online admissions portal. This is your one-stop-shop for tracking your admission to the school.

Mater Dei High School offers international students a holistic education by providing opportunities for growth through excellent academic courses, leadership opportunities, spiritual development, and extensive extra- and co-curricular activities. We welcome international students entering grades 9, 10 or 11 to apply.

Mater Dei is a distinguished destination of excellence in academics and technology, the arts, faith and service, campus life, and athletics. We are proud to be Orange County’s oldest and largest Catholic high school.

Mater Dei is a distinguished destination of excellence in academics and technology, the arts, faith and service, campus life, and athletics. We are proud to be Orange County’s oldest and largest Catholic high school.