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

Oct 1 Thu
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 2 Fri
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 5 Mon
- RED: B. 1, 3, 5, 7
  Block Schedule
- Office Hour 2:30 PM – 3:30 PM
  Block Schedule
Oct 6 Tue
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 7 Wed
- Testing Day: PSAT - Juniors & PACT - Sophomores
  Block Schedule
Oct 8 Thu
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 9 Fri
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 12 Mon
- RED: B. 1, 3, 5, 7
  Block Schedule
- Office Hour 2:30 PM – 3:30 PM
  Block Schedule
Oct 13 Tue
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 14 Wed
- RED (Pair Day - Early Dismissal): B. 1, 3, 5, 7
  Block Schedule
Oct 15 Thu
- GRAY (Mass Schedule): B. 2, 4, 6, 8
  Block Schedule
Oct 16 Fri
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 19 Mon
- GRAY: B. 2, 4, 6, 8
  Block Schedule
- Office Hour 2:30 PM – 3:30 PM
  Block Schedule
Oct 20 Tue
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 21 Wed
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 22 Thu
- RED (Pair Day - Early Dismissal): B. 1, 3, 5, 7
  Block Schedule
Oct 23 Fri
- GRAY (Rally Schedule): B. 2, 4, 6, 8
  Block Schedule
Oct 26 Mon
- No School - MD Holiday
  Block Schedule
Oct 27 Tue
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 28 Wed
- GRAY: B. 2, 4, 6, 8
  Block Schedule
Oct 29 Thu
- RED: B. 1, 3, 5, 7
  Block Schedule
Oct 30 Fri
- GRAY: B. 2, 4, 6, 8
  Block Schedule

Events in October 2026
Su	Mo	Tu	We	Th	Fr	Sa
	2 events ••	One event •	One event •	One event •	One event •
	2 events ••	One event •	One event •	One event •	One event •
	2 events ••	One event •	One event •	One event •	One event •
	2 events ••	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
Admissions
Alumni & Advancement
Visual Arts
Performing Arts
Campus Ministry

Select all

Loading...