• About Us

    St. Mary’s High School, founded in 1931, has been an integral part of St. Louis’ South Grand’s Dutchtown neighborhood. The campus includes more than 27 acres, encompassing a blend of state of the art academic classrooms to modern sports facilities, including the Center for Applied Sciences (CAS), baseball field and soccer practice facility. Read more

  • History

    St. Mary’s High School, 4701 South Grand Boulevard, opened its doors under the name of South Side Catholic High School in September 1931. For the first two years its teachers were Christian Brothers. The first classrooms were small wooden structures located on the property of St. Joseph’s Orphanage. Read more

  • Mission

    St. Mary’s is a Catholic high school rooted in the Marianist tradition. Each person is seen as a child of God with gifts that will be called forth. This community is a place where self actualization, diversity and life-long learning are encouraged. Read more

  • Characteristics of Marianist Education

    St. Mary’s High School is a Catholic School rooted in the Marianist tradition. St. Mary’s men are: Embodied in Faith, Empowered by Excellence, Embraced as Family, Enlightened through Service and Transformed for LIFE. These core values derive from the 5 characteristics of Marianist Education. Read more

  • Leadership Team

    In 2008, St. Mary's High School created an Administrative Leadership Team which consists of the President, the Principal and the Associate Principal. Read more

  • Board of Directors

    “The meaningful involvement of people in your mission and vision for the future.” Read more

  • Accreditation

    St. Mary’s High School is a St. Louis Archdiocesan High School accredited by the North Central Association: Commission on Accreditation and School Improvement. North Central Accreditation Seals are recognized across the United States and around the world. Read more