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

Sep 3 Wed
- Diocesan DPA Meeting 8:30 AM – 2 PM (Pastoral Center - 4A)
  Diocesan Events
Sep 10 Wed
- Make-Up Picture Day 8:30 AM – 2 PM (Library)
  Activities
Sep 11 Thu
- Special Dress - Red, White, and Blue Top with Spirit Bottoms
  Activities
Sep 12 Fri
- No School - Diocesan Convocation at MD (MD)
  Diocesan Events
Sep 18 Thu
- Special Dress - Senior T-Shirt and Jeans
  Activities
- Diocesan Learning Support Articulation Meeting 12:15 PM – 3 PM (Pastoral Center - 4A)
  Diocesan Events
Sep 19 Fri
- MD Spirit Dress
  Activities
Sep 23 Tue
- Club Rush during Both Lunches (Shamrock Plaza)
  Activities
Sep 24 Wed
- Club Rush during Both Lunches (Shamrock Plaza)
  Activities
Sep 25 Thu
- Diocesan Technology Coordinator Meeting 2:30 PM – 3:30 PM (Zoom)
  Diocesan Events
Sep 26 Fri
- MD Spirit Dress
  Activities
- Senior Over Night 10 PM (MAC)
  Activities
Sep 27 Sat
- Senior Sunrise 6 AM – 8 AM (MD Parking Structure)
  Activities
Sep 29 Mon
- Homecoming Court Pictures 5 PM (Chapel Annex)
  Activities

Calendars

Select all