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

Oct 1 Mon
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 3 Wed
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 5 Fri
- Marching Band/Guard @ Home Game vs Santa Margarita 5 PM – 10 PM (Santa Ana Bowl)
Oct 10 Wed
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 12 Fri
- Marching Band/Guard @ Home Game vs St. John Bosco 5 PM – 10 PM (Santa Ana Bowl)
Oct 13 Sat
- Marching Band/Guard Competition @ Costa Mesa HS
Oct 15 Mon
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 17 Wed
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
- Marching Band/Guard @ Info Night #1 4 PM – 8:30 PM (MD)
Oct 19 Fri
- NAU: Marching Band/Color Guard Trip (Northern Arizona University)
- Pep Band Away vs JSerra 4:30 PM – 10 PM
Oct 20 Sat
- NAU: Marching Band/Color Guard Trip (Northern Arizona University)
Oct 21 Sun
- NAU: Marching Band/Color Guard Trip (Northern Arizona University)
Oct 22 Mon
- Fall Concert Practice (winds and percussion) 2:15 PM – 4:30 PM
Oct 24 Wed
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 26 Fri
- Pep Band Away vs OLU 4:30 PM – 10 PM
Oct 27 Sat
- Instrumental Music Fall Concert: Winds, Strings, Percussion, Guitar 3 PM – 10 PM (MD)
Oct 29 Mon
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)
Oct 31 Wed
- Marching Band/Color Guard Rehearsal 3:30 PM – 7 PM (MD)

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