Moreau Catholic High School opened its doors in 1965
to a class of 103 ninth grade boys. In 1969, as the only Catholic high school serving the Southern Alameda County, the school became coeducational.
The high school was constructed with financial and community support from the members of the Diocese of Oakland, the late Bishop Floyd L. Begin and the Brothers of Holy Cross, South-West province.
In addition to its strong commitment to providing young men and women with a quality education that is firmly rooted in the Christian values, Moreau Catholic has twice earned national recognition for academic excellence as a Blue Ribbon School by the United States Department of Education and the Council for American Private education.