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

Jan 1 Thu
- Academic Decathlon Rome Trip (Italy)
  Activities
Jan 2 Fri
- Academic Decathlon Rome Trip (Italy)
  Activities
Jan 3 Sat
- Academic Decathlon Rome Trip (Italy)
  Activities
Jan 8 Thu
- Special Performing Arts Dress - Dance Conservatory Concert
  Activities
Jan 9 Fri
- Winter Rally (MAC)
  Activities
Jan 10 Sat
- MUN @ Capo Valley HS MUN (Capistrano Valley HS)
  Activities
- Academic Decathlon Objective Events & Super Quiz 8 AM – 3 PM (Library & LeVecke)
  Activities
Jan 20 Tue
- Mock Trial @ Teach Democracy Round 6 5 PM – 8 PM (Central Justice Center, Santa Ana)
  Activities
Jan 22 Thu
- Special Dress - Senior T-Shirt and Jeans
  Activities
Jan 27 Tue
- Mock Trial @ Teach Democracy Round 7 5 PM – 8 PM (Central Justice Center, Santa Ana)
  Activities
Jan 29 Thu
- Mock Trial @ Teach Democracy Round 8 5 PM – 8 PM (Central Justice Center, Santa Ana)
  Activities
Jan 30 Fri
- MD Spirit Dress
  Activities
Jan 31 Sat
- Academic Decathlon SoCal Region Round 2: Speech & Interview Events 8 AM – 4 PM (El Camino Real HS)
  Activities

Events in January 2026
Su	Mo	Tu	We	Th	Fr	Sa
One event •	One event •	One event •	One event •	One event •	One event •	One event •
				One event •	One event •	2 events ••

		One event •		One event •
		One event •		One event •	One event •	One event •

Calendars

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

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