Stone Bridge's athletic program was established in 2000 when the high school opened. The school's mascot (bulldogs) and colors (navy, Carolina blue, and silver) were established in 1999 after over 1,100 students at Broad Run High School, Loudoun County High School, and Harper Park Middle School voted. Other mascots that were proposed were the Stone Bridge Knights, the Stone Bridge Sabers, and the Stone Bridge Thunderbirds. Other color combinations that were considered included Navy Blue and Orange; Purple and Gold; and Green and Silver.