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

Sep 5 Fri
- V Football vs Kahuku, HI 7 PM (SA Bowl)
  Athletics
Sep 6 Sat
- V Cross Country @ PR City Invite (Silver Lake Sports Complex, Norco)
  Athletics
Sep 9 Tue
- V Girls Tennis @ Aliso Niguel 3 PM (Aliso Niguel)
  Athletics
Sep 12 Fri
- V Football @ Centennial 7 PM (Centennial)
  Athletics
Sep 19 Fri
- V Cross Country @ Woodbridge Invitational (Great Park, Irvine)
  Athletics
- V Football @ Bishop Gorman 7 PM (Bishop Gorman)
  Athletics
Sep 24 Wed
- V Girls Golf @ Orange Lutheran 3:15 PM (Orange Lutheran)
  Athletics
- V Boys Water Polo @ Orange Lutheran 4 PM (Orange Lutheran)
  Athletics
Sep 25 Thu
- V Girls Volleyball @ Orange Lutheran 3:30 PM (Orange Lutheran)
  Athletics
- V Girls Flag Football @ Orange Lutheran 6 PM (Orange Lutheran)
  Athletics
Sep 26 Fri
- V Cross Country @ Trinity League Preview Meet 9 AM (HB Central Park)
  Athletics
Sep 29 Mon
- V Girls Golf vs Santa Margarita 3:15 PM (MD)
  Athletics
Sep 30 Tue
- V Girls Volleyball vs Santa Margarita 3:30 PM (MAC)
  Athletics
- V Girls Flag Football vs Santa Margarita 6 PM (MD)
  Athletics

Events in September 2025
Su	Mo	Tu	We	Th	Fr	Sa
One event •					One event •	One event •
		One event •			One event •
					2 events ••
			2 events ••	2 events ••	One event •
	One event •	2 events ••	2 events ••	2 events ••	One event •	One event •

Calendars

Diocesan Events
Home Campus
Counseling
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Activities
Block Schedule
Athletics
Admissions
Alumni & Advancement
Visual Arts
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2024-2025 School Year

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