Brentwood School has a long tradition of athletic excellence, as Lady Eagle and Eagle teams have captured 31 state and 134 region championships since 1971. Brentwood is currently a member of Region 4-AA of the Georgia Independent Schools Association (GISA) Interscholastic division.

During the Fall, the school fields teams at the varsity, junior varsity, and middle school levels in girls' fast-pitch Softball; varsity and junior varsity teams in both girls' and boys' Cross-Country; varsity, middle school, and elementary school teams in Football; varsity and junior varsity squads in the sport of Competitive Cheerleading with lower grade football cheer teams; and varsity Clay target shooting.

In the winter, Brentwood teams compete at the varsity, junior varsity, and middle school levels in both girls' and boys' Basketball. The school also offers an intramural basketball program for students in grades 3 through 6.

Spring is also a busy time of year, as Brentwood fields varsity, junior varsity, and middle school teams in Baseball; varsity and middle school teams in both girls' and boys' Track and Field; varsity teams in both girls' and boys' Tennis; and a varsity Golf team.

The athletics program is a key component of the school's mission. The program aims to create leadership skills, build personal relationships, self-discipline, mutual respect and good sportsmanship. Student athletes can use our program as a platform to showcase their skills for future participation at the collegiate level.