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
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.
- Students
- Parents
- Faculty

Biography

About

I am the Boys Soccer Coach. I also teach Algebra to freshman. This is my 12th year. My family has all been a part of the MD family. My wife was a former teacher and administrator, my son is an alum class of 2021, and my daughters are future classes of 2035 and 2036!

What I Love About MD
I love that everyone is family at MD. I love that the MD mission and philosophy is lived out daily. And I love that all faculty and staff relentlessly work to be the best so that we can give the best to all MD students. #runasone

Education: Masters of Coaching and Athletic Administration from Concordia University, Bachelors of Liberal Studies with a Minor in Exercise Sports Science from Vanguard University, USSF A-Senior license

At MD since: 2011

Teaching since: 2011

Name: Mr. Sean Ganey
Position: Math Teacher/Boys Soccer Head Coach
Email: Send email
Phone: (714) 850-9443