Mater Dei High School
Build The Future

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

Mar 8 Mon
- Choir Spring Concert 6:30 PM (Renee and Henry Segerstrom Concert Hall)
  Performing Arts
Mar 12 Fri
- Honors Musical Theatre Performance 7 PM (Phillips Hall, Santa Ana College)
  Performing Arts
Mar 13 Sat
- Honors Musical Theatre Performance 2 PM (Phillips Hall, Santa Ana College)
  Performing Arts
- Honors Musical Theatre Performance 7 PM (Phillips Hall, Santa Ana College)
  Performing Arts
Mar 17 Wed
- Mt. SAC Chamber Festival (Mt. San Antonio College)
  Performing Arts
Mar 18 Thu
- CSUF Mens Festival (CSUF)
  Performing Arts
- CSUF Women's Festival (CSUF)
  Performing Arts
Mar 19 Fri
- CSUF Chamber Festival (CSUF)
  Performing Arts
- La Primavera 7 PM (TBD)
  Performing Arts
Mar 24 Wed
- Choir Italy Tour (Italy)
  Performing Arts
Mar 25 Thu
- Choir Italy Tour (Italy)
  Performing Arts
Mar 26 Fri
- Choir Italy Tour (Italy)
  Performing Arts
Mar 27 Sat
- Choir Italy Tour (Italy)
  Performing Arts
Mar 28 Sun
- Choir Italy Tour (Italy)
  Performing Arts
Mar 29 Mon
- Choir Italy Tour (Italy)
  Performing Arts
Mar 30 Tue
- Choir Italy Tour (Italy)
  Performing Arts
Mar 31 Wed
- Choir Italy Tour (Italy)
  Performing Arts

Events in March 2027
Su	Mo	Tu	We	Th	Fr	Sa

	One event •				One event •	2 events ••
			One event •	2 events ••	2 events ••
			One event •	One event •	One event •	One event •
One event •	One event •	One event •	One event •	One event •	One event •	One event •

Calendars

Diocesan Events
Home Campus
Counseling
Academics
Activities
Block Schedule
Athletics
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