Mater Dei High School

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Mater Dei Alumnus Ryan McMahon '13 Hits 1st Major League Home Run!

Our Students on the Notre Dame Vision Retreat

Construction on the parking structure has begun! 

Our faculty at the Capstone Conference of the Science and Church Initiative

Student service trip to Peru

Helping the community of Luauina lay the foundation for their restaurant 

Congratulations to our 2018 Ring of Honor Inductees: 

Fr. Ed Poettgen '72, Mike Trotter '81, Leslie & John Widera & Dr. Robert Jackson '86

Henry Waterman '20 at State Finals

Class of 2018 Valedictorian, Jane Huynh

Class of 2018 Salutatorian, Jack Uribe

Congratulations to the Class of 2018

Congratulations to our international student graduates! 

Baccalaureate Mass

Sentinels of Freedom

Honoring nearly 450 Monarchs who have served our country and those seven who paid the ultimate sacrifice. We remember. We are grateful. 

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Welcome

Founded in 1950 in Santa Ana, CA, Mater Dei is one of the country's largest Catholic college preparatory high schools and focuses on the holistic development of each student by providing opportunities for growth through leadership, spiritual development, outreach and extensive co-curricular programs.

2018-19 Important Dates Calendar

The Important Dates Calendar for the 2018-19 school year is now live. This document contains school start/end dates, all breaks and holidays, and other important dates for your planning purposes. Please note, dates are subject to change. The final school calendar will be made live on the MD website on 7/1/18.
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