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
- Students
- Parents
- Faculty
- Alumni
- Grandparents
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
Behind every achievement, success, and championship, stand the alumni, parents, faculty, staff, and friends who fortify our future. We invite you to support MD in a variety of ways with a gift that is meaningful to you.

The Spirit of Josef Award

Congratulations to Mrs. Kendra Hart of the Religious Studies Department for being selected as the 2023 Spirit of Josef Recipient. We surprised Mrs. Hart in class with this great news a few weeks before Easter. Enjoy the video below:

The Spirit of Josef Award recognizes a current Mater Dei employee who exhibits the spirit of Josef by exemplifying his best traits either through quiet random acts of kindness, as a model of faith, a good listener, passion for Mater Dei, care for our planet and beloved school campus, or small quiet displays of compassion that often go unseen.

Who do you see walking Josef's path? We challenge you to not only look around for the "Josefs" among us in our faculty/staff community, but to also aspire to that type of quiet leadership and service as well.

PAST RECIPIENTS

Mr. Kent Helwig, Performing Arts Department

2021

Mr. Christopher Pham, World Languages Department

2022