St. Catherine of Siena School sponsors various activities and organizations for students who are eligible. These may include, but are not limited to, National Junior Honor Society, Student Council, Cheerleading, Pep Squad, Scream Squad, and Athletics. Information about these activities and organizations is sent home at the beginning of the school year or at the beginning of the athletic season for the particular sport. It is also posted in the athletic section of the school website and is available in the school office. The principal must approve any school-sponsored club, activity or organization.