We ARE MD. For over 65 years, Mater Dei has been the heart of Catholic education in Orange County. With a focus on the holistic development of each and every student, we encourage students to dream big and realize opportunities they might not imagine.
LEARN. Mater Dei offers a comprehensive academic program in college prep, honors and Advanced Placement.
EXPERIENCE MD. Through a visit to campus or exploring our website, your Monarch journey begins here!
GRATITUDE. As one of the nation’s premiere educational institutions, we continue to thrive because of the support of our incredible donors and volunteers. Support MD today!
TRADITION NEVER GRADUATES. With an alumni network of over 27,000, the bond of Mater Dei transcends generations through our eternal connections of Honor, Glory, and Love.
EXPLORE & CREATE. The arts offer a variety of mediums for students to gain practical and valuable experience.
COMPETE. Mater Dei’s nationally-recognized athletic program, offers 24 sports over three seasons. Student-athletes are able to compete and grow though life-building skills.
GET INVOLVED. With over 95% of students involved in at least one extra or co-curricular program, students can make Mater Dei their own through avenues of leadership, faith, and shared interests
CIF-SS Open Division Boys Basketball Quarterfinal-Round Playoff Game
•Wednesday, February 25
•Colony High School (3850 E. Riverside Dr., Ontario) *****