Calhoun competes in Section VIII athletics, a compilation of public schools in
Nassau County. The fall season hosts boys' and girls' cross country, football, boys' and girls' soccer, girls' tennis, boys' badminton, boys' volleyball, girls' volleyball, cheerleading, and girls' swimming. The winter season hosts wrestling, boys' and girls' basketball, cheerleading, and indoor track, with district teams—including athletes from the other two schools of the district,
Mepham and
Kennedy—for ice hockey, swimming, diving, rifle, and bowling. The final season, spring, is home to boys' and girls' lacrosse, track and field, baseball, softball, boys' tennis, and girls' badminton. ==Calhoun Choral Program==