National Honor Society
Membership in the National Honor Society is both an honor and a responsibility. Students elected to membership are expected to continue to demonstrate the qualities of scholarship, service, leadership, and character. Once a member is dismissed, she is never again eligible for membership.

Mu Alpha Theta
The purpose of this organization shall be to further the understanding of mathematics and to encourage a more intense study of mathematics. St. Mary's Academy is a charter member of the national organization.