Mater Dei High School
Forward in Vision, Rooted in Tradition

About MD
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.
Admissions
Your journey to becoming a Monarch starts here! Tour campus, schedule a shadow day, begin your application, and more. We are excited for you to join the MD family!
Programs
Built on Catholic fellowship and intellectual rigor, our programs in academics, technology, athletics, faith and service, and the arts provide unlimited opportunities for student success. Comprehensive counseling and wellness resources educate and bolster families throughout the high school journey.
Faith in Action
Guided by the articulation of Catholic Social Teachings, Mater Dei prioritizes the faith development of our students with an emphasis on Christian service. We believe this allows our students to grow in their spiritual lives while living our gospel values through giving back to others and truly experiencing the face of God.
Campus Life
Through avenues of leadership, faith, shared interests, and extracurricular activities and events, students can make Mater Dei their own. Get involved today!
Community
Tradition never graduates. Alumni, lifetime parents, grandparents, and friends are a vital and vibrant aspect of our community. Once a Monarch, always a Monarch.
Giving

Events

Apr 1 Fri
- MD v Archbishop Mitty High School (Mater Dei)
Apr 2 Sat
- California Catholic High School Invite (Select Varsity Only) 11 AM – 1:30 PM (Santa Margarita Catholic High School)
Apr 7 Thu
- MD v JSerra High School 3:15 PM – 6 PM (Mater Dei)
Apr 14 Thu
- MD v Santa Margarita 3:15 PM – 6 PM (Mater Dei)
Apr 15 Fri
- Palm Springs High School Invitational (Select Varsity Only) (Palm Springs Aquatics Center)
Apr 16 Sat
- Palm Springs High School Invitational (Select Varsity Only) (Palm Springs Aquatics Center)
Apr 21 Thu
- Boys Foothill Swim Games Prelims (Select Varsity Only) 3 PM – 6 PM (Foothill High School)
Apr 22 Fri
- Girls Foothill Swim Games Prelims (Select Varsity Only) 3 PM – 6 PM (Foothill High School)
Apr 23 Sat
- Foothill Swim Game Finals (Select Varsity Boys & Girls Only) 10 AM – 12 PM (Foothill High School)
Apr 28 Thu
- MD v St John Bosco and St Joseph's 3:15 PM – 6 PM (Mater Dei)

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