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

Feb 11 Wed
- Progress Check Due
  Academics
Feb 17 Tue
- MUN International Trip (Rome & Vienna)
  Academics
Feb 18 Wed
- MUN International Trip (Rome & Vienna)
  Academics
Feb 19 Thu
- MUN International Trip (Rome & Vienna)
  Academics
Feb 20 Fri
- MUN International Trip (Rome & Vienna)
  Academics
Feb 21 Sat
- MUN International Trip (Rome & Vienna)
  Academics
Feb 22 Sun
- MUN International Trip (Rome & Vienna)
  Academics
Feb 23 Mon
- MUN International Trip (Rome & Vienna)
  Academics
Feb 24 Tue
- MUN International Trip (Rome & Vienna)
  Academics
- Honors/AP English Qualifying Exam (Current 9th-11th) 2:30 PM – 3:30 PM (Upper 400 Wing Classrooms)
  Academics
Feb 25 Wed
- MUN International Trip (Rome & Vienna)
  Academics
Feb 26 Thu
- MUN International Trip (Rome & Vienna)
  Academics
- College Webinar for Juniors 12 PM – 1 PM (Online)
  Academics
Feb 27 Fri
- MUN International Trip (Rome & Vienna)
  Academics

Calendars

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