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

News & Announcements

wildfire outreach

LA County Wildfire Outreach

Mater Dei High School is working with the Archdiocese of Los Angeles to collect donations to support LA Catholic Schools affected by the fires. Student led collections & drives to help those affected by the fires will be held on campus-more information to come this week. Click for more information.

Monty and Molly mascots with Principal Frances Clare in a high school setting.

Scarlet & Gray Magazine: Winter 2025 Issue

Enjoy the Winter 2025 issue of the Scarlet & Gray Magazine, the official magazine of Mater Dei High School.

December Monarchs of the Month - Jordan Hannah and Emily Nelmida

December Monarchs of the Month

Congratulations to Jordan Hannah and Emily Nelmida who were named Monarchs of the Month for December.

November Monarchs of the Month

November Monarchs of the Month

Congratulations to Fionan Cervenak and Gabrielle Vu who were named Monarchs of the Month for November.

Mater Dei Junior Genesis Quiette Earns All-Expenses-Paid Trip to High Point University

Mater Dei Junior Genesis Quiette Earns All-Expenses-Paid Trip to High Point University

Genesis Quiette, Class of 2025, impresses at the College Fair and is selected for High Point University's "From California to Carolina" program, receiving a fully funded visit to their North Carolina campus this December.

Mater Dei Football Featured on Sunday Night Football - 11/24/24

Mater Dei Football Featured on Sunday Night Football - 11/24/24

Did you miss it? Heading into the CIF-SS Championship, MD Football got a shout out on Sunday Night Football. Click here to watch now!

Fall 2024 Semester Exam Schedule & Resources

Fall 2024 Semester Exam Schedule & Resources

Click here for schedule and hours for campus resources during exam week.

Layli Ostovar Featured as Sports Star of Tomorrow

Layli Ostovar Featured as Sports Star of Tomorrow

Congrats to this incredible student athlete and member of the Girls Varsity Volleyball team for her accomplishments on and off the court! Click to watch video.

39 Monarchs Commit to Continue Their Athletic Journey in College

39 Monarchs Commit to Continue Their Athletic Journey in College

On Wednesday, November 13, 39 members of the Class of 2025 officially commited to continue their athletic journey at the collegiate level surrounded by their coaches, teammates, family and friends.

October Monarchs of the Month

October Monarchs of the Month

Congratulations to Isis Rivas and Lucas Cruz.

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