St. Mary's South Side Catholic High School, located in St. Louis, Missouri, is a renowned Catholic high school that has been serving young men in the Marianist tradition since 1931.

The campus, sprawling over 27 acres, boasts state-of-the-art academic classrooms and top-notch collegiate-level sports facilities. As an all-male secondary school, St. Mary's stands at the forefront of secondary education, providing a rigorous academic curriculum at a significantly lower tuition cost compared to other schools in the area.

With more than 12,000 graduates, St. Mary's South Side Catholic High School has a proven track record of excellence in academics. However, education at St.

Mary's goes beyond the classroom. Rooted in the rich traditions of the Marianist order, students are encouraged to grow intellectually, emotionally, physically, and spiritually. The school's curriculum, organized on a rotating block schedule, offers a wide range of college credit and honors courses that stimulate exploration and personal growth.

Additionally, students benefit from a strong sense of community and brotherhood, engaging in leadership opportunities, athletics, clubs, and campus ministry activities. St. Mary's South Side Catholic High School provides a holistic educational experience that prepares young men to become compassionate leaders in their community and the world