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

May 2 Mon
- Team Meeting on Pool Deck - All Groups 2:45 PM – 3 PM
- Beginner Practice 3 PM – 5 PM
- Advanced Practice 4 PM – 6 PM
May 3 Tue
- SWIM MEET - Trinity League Swimming Prelims 3 PM – 6 PM (Santa Margarita HS)
May 4 Wed
- Beginner Practice 3 PM – 5 PM
- Advanced Practice 4 PM – 6 PM
May 5 Thu
- Beginner Practice 3 PM – 5 PM
- Advanced Practice 4 PM – 6 PM
May 6 Fri
- SWIM MEET - Trinity League Swimming Finals 3 PM – 6 PM (Santa Margarita HS)
May 7 Sat
- 5th Annual Aquatics Dinner & Auction 6 PM – 9 PM
May 9 Mon
- CIF Qualifiers Meeting on Pool Deck 2:45 PM – 3 PM (MD Pool Deck)
- CIF Qualifiers Practice 3 PM – 4:15 PM
May 10 Tue
- Team Meeting on Pool Deck - All groups 2:45 PM – 3:15 PM
- CIF Qualifiers Practice 3 PM – 4:15 PM
May 11 Wed
- SWIM MEET - CIF Div I Prelims 12 PM – 6 PM (Belmont Plaza Pool - Long Beach)
May 12 Thu
- CIF Qualifiers Practice 3 PM – 4:15 PM (MD Pool)
May 13 Fri
- SWIM MEET - CIF Div I Finals 4:30 PM – 7 PM (Belmont Plaza Pool - Long Beach)
May 16 Mon
- Swim Practice 2:45 PM – 4:15 PM (MD Pool)
- Masters Qualifiers Practice 3 PM – 5 PM (MD Pool)
May 17 Tue
- SWIM MEET - Masters at Irvine High School 4:30 PM – 7 PM (TBA)
May 19 Thu
- Early Swim Practice 12:30 PM – 2 PM (MD Pool)
May 23 Mon
- Swim Practice 2:45 PM – 4:15 PM (MD Pool)
May 26 Thu
- Swim Practice (Optional) 2:15 PM – 3:15 PM (MD Pool)
May 30 Mon
- Memorial Day - No Practice

Loading...