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

Biography

About
Ryan Kelaher serves as head coach of the Boys Golf Program. The golf program is rich in history and he looks forward to helping his players grow into better players and prepare them for their futures. In 2021 the Monarch’s captured the Trinity League Title and CIF Division 1 Championship. Since moving to California, he has coached both lacrosse and golf. In 2017 he earned Sunset Coach of the Year.

Mr. Kelaher was a former H.S. All American and played NCAA Division 1 lacrosse at both Loyola University Maryland and Hofstra University; Mr. Kelaher played for the Long Island Lizard in 2008. He brings an extensive knowledge of education, college readiness and composure to the classroom and clubhouse.

In his spare time Mr. Kelaher enjoys playing golf, skiing and traveling.

Education
Master of Education - Whittier College; Masters in Secondary Administration - Concordia University, Irvine; Bachelor of Arts History - Hofstra University

Teaching Since: 2010

At MD MD since: 2011

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Name: Mr. Ryan Kelaher
Position: Head Coach Boys Golf
Email: Send email
Phone: (714) 668-1333