William Sparkman Overstreet (born October 7, 1979, in Jackson, Mississippi) is a former American football linebacker for the Atlanta Falcons in the National Football League. He was drafted by the Falcons in the 3rd round of the 2002 NFL Draft out of the University of Tennessee where he was a captain on the 2001 Tennessee team. He was a member of Pi Kappa Alpha fraternity. He played high school football at Jackson (Miss.) Prep. Prior to signing with the Vols in February 1998, the Clarion-Ledger newspaper named Overstreet the 1997 Metro-Jackson Area Player of the Year and selected him as a member of their All-State team.