Mater Dei Catholic (MDCHS) (formerly Marian High School) is a private Catholic TK-12 school in Chula Vista, California, United States. It is located in the Roman Catholic Diocese of San Diego.
In 1960, Bishop Charles F. Buddy founded the first co-educational Catholic high school in the Diocese of San Diego. It would be built on twenty acres of land donated by Mr. and Mrs. Robert Egger. Seventy young students and a faculty of four embarked on a lasting venture which was to become known as Marian High School. These boys and girls carried the hopes and best wishes of many people as they attended classes in a three room division of St. Charles School across the street from what would be the future campus. In 2002, the Diocese of San Diego decided to upgrade all of its secondary campuses. A new site in Chula Vista was chosen and a new school was built. In 2007, the name was changed from Marian Catholic High School to Mater Dei Catholic and the school moved to its present location.
The original campus was located in South San Diego, near the intersection of Coronado Avenue and Thermal Street. Across from Marian Catholic was the parochial K-8 school, Saint Charles Catholic School. The new campus is located in East Chula Vista, in close proximity to Otay Ranch Town Center.
Its facilities include the Marian chapel, a track and football stadium, baseball and softball diamonds, tennis courts, a full-service 800-seat theater, a competition swimming pool, a basketball/volleyball gym, and an environmentally friendly "earth bench".
Mater Dei Catholic High School competes in the Metropolitan â Mesa League under the South Bay League of the CIF San Diego Section. The "Pioneers" have won several team and individual state championships.