25-26 Registration Open Now
Register early (on or before 3/31) to enjoy a $100 discount on your registration fee and be automatically entered into a raffle for a chance to receive $1,000 off your 2025-2026 school year tuition!
Mater Dei High School Home
Monarch News
25-26 Registration Open Now
Register early (on or before 3/31) to enjoy a $100 discount on your registration fee and be automatically entered into a raffle for a chance to receive $1,000 off your 2025-2026 school year tuition!
2025 Summer Camps!
Looking for the ultimate summer experience? Join us for Mater Dei High School’s Summer Sports Camps, where Future Monarchs, incoming students, and returning athletes can train, compete, and have fun with our elite coaches and Monarch athletes! Don’t miss your chance to elevate your game this summer. CLICK HERE to register now.
Gratitude for Kevin Kiernan’s Legacy at Mater Dei
It is with deep appreciation that we share the news that Athletic Director Kevin Kiernan has announced his retirement, effective at the end of the school year. As the winningest coach in California girls basketball history, with over 900 career wins, Coach Kiernan has made an extraordinary impact on our student-athletes, both on and off the court. Click to read full press release.
Mater Dei High School Makes History with Playfly Sports!
Mater Dei High School is proud to announce a groundbreaking 10-year partnership with Playfly Sports, making us the first high school in the nation to secure a third-party multimedia rights agreement. This partnership will enhance sponsorship opportunities, increase media exposure, and elevate the experience for our students, families, and fans both on campus and at game days. Watch our launch video and read the official press release to learn more about how this collaboration will strengthen Mater Dei’s tradition of excellence!
Spring Spirit Week: March 24 - 28
Special Dress Days and lunchtime activities all week long! Click here below to purchase a soft serve ice cream to be served during both lunches on Wednesday, March 26!
Congratulations Isabella Strickland-Martinez, Kayla Stephanos, and Alice Eskander!
They will receive three weekends of leadership training and hands-on guidance from mentors in the community, plus a single grant of up to $5,000 from the Foundation to implement their social service project in their local community this summer.
February Monarchs of the Month
Congratulations to Vincent Van Niekerk and Valerie Noria who were named Monarchs of the Month for February.
Nikko Remigio '18 Featured on Fox 11 Super Bowl Spotlight
Enjoy a great segment of this Three Stiper as he headed into yesterday's Super Bowl with the Kansas City Chiefs. Although the outcome of yesterday's game did not go in his favor, our Monarch community is proud nonetheless.
January Monarchs of the Month
Congratulations to Skyler Rosenberg and Alana Le who were named Monarchs of the Month for January.
Fall 2024 Semester Honor Roll
Congratulations to all our Monarchs who made the Fall 2024 Honor Roll. Your hard work and dedication have paid off, showcasing your commitment to academic excellence. Keep up the great work and continue to inspire others with your achievements!
13 Monarchs Commit to Continue Their Athletic Journey in College
This morning 13 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.
Congratulations to Mrs. Eunice Kim, English Department
Mrs. Kim was named a Secondary School Finalist in the Diocese of Orange's Annual St. Elizabeth Ann Seton Teacher of the Award. Our Monarch community is truly proud of you, Mrs. Kim, and we are so fortunate to have you as a member of our incredible faculty. Click to learn more about this honor and our past recipients.
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.
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
Congratulations to Jordan Hanna and Emily Nelmida who were named Monarchs of the Month for December.
Upcoming Events
Mater Dei At A Glance
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Uniquely Mater Dei
- 188 Zip Codes
- 124 Feeder Schools
- 73% Catholic/ 27% Non Catholic
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Faith & Service
- 45K+ Hours Given Per Year
- 600+ Organizations
- 140 Average Hours Per Graduate
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Comprehensive Academics
- 55 Honors Courses
- 21 AP Courses
- 109+ Electives
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Nationally Recognized Athletics
- 28 Sports Teams
- 71% Athletes on Honor Roll
- 23 Gatorade Players of the Year
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Unparalleled Arts
- 82 Courses
- 47% of student body
- 70% of Artists on Honor Roll
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Global Alumni Network
- 30K+ Worldwide
- Robust Alumni Business Network
- 20% Faculty Staff are Alumni
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