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

Jan 2 Sat
- Sailing @ 2027 PCISA 3/5 - Rose Bowl (Long Beach, CA)
  Activities
Jan 3 Sun
- Sailing @ 2027 PCISA 3/5 - Rose Bowl (Long Beach, CA)
  Activities
Jan 8 Fri
- MD Spirit Dress
  Activities
- Winter Rally (MAC)
  Activities
Jan 9 Sat
- MUN @ Capo Valley HS MUN Conference 8 AM – 4 PM (Capistrano Valley HS)
  Activities
Jan 15 Fri
- MD Spirit Dress
  Activities
Jan 16 Sat
- Academic Decathlon Study Retreat (Marriott's Newport Coast Villas)
  Activities
Jan 17 Sun
- Academic Decathlon Study Retreat (Marriott's Newport Coast Villas)
  Activities
Jan 22 Fri
- MD Spirit Dress
  Activities
Jan 23 Sat
- Academic Decathlon @ OCAD Region Round 2: Speech & Interview events (Tustin HS)
  Activities
Jan 25 Mon
- Special Senior Dress: 2027 Senior T-Shirt with Spirit Bottoms
  Activities
Jan 29 Fri
- MD Spirit Dress
  Activities
Jan 30 Sat
- Father/Daughter Dance (TBD)
  Activities
- Academic Decathlon @ OCAD Region Round 2: Objective events & Super Quiz 8:30 AM – 4:30 PM (Westminster HS)
  Activities

Calendars

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