Opportunities for athletes exist in all inter-scholastic high school sports – football, volleyball, cross country, soccer, softball, basketball, swimming, wrestling, track, baseball, tennis and golf. Celtic athletes compete in Missouri Class 3 West Central conference and accrue titles from conference to district to state on a yearly basis. Cheerleading and dance team provide artistic/athletic opportunities.
     Dedicated coaches, including many alumni assistant coaches, work with O'Hara athletes to encourage individual and team success and good sportsmanship. The athletic program helps in developing the whole person.