Interscholastic sports in the Upper School include cross country, football, soccer, volleyball, basketball, tennis, golf, swim, and track and field. We compete at the OSAA class 3A level. St. Mary's is a six-time winner of the OSAA Oregonian Cup, which recognizes overall school excellence in academics, athletics, activities, and sportsmanship.
Interscholastic sports in the Middle School include archery, cross country, football, volleyball, basketball, baseball, and track and field.