Jeffery Barnard Demps (born January 8, 1990) is an American track and field athlete and former American football running back. He attended the University of Florida, where he was a running back for the Florida Gators football team and a sprinter for the Florida Gators track and field team.
He is the only Florida Gator athlete to have won national championships in two sports, with his 2009 BCS National Championship and multiple indoor and outdoor track titles over his four-year career. Demps matched the 100 meters world junior record with 10.01 seconds in June 2008.
In January 2012, Demps decided to focus on the 2012 United States Olympic Trials instead of the 2012 NFL Draft, pursuing a career in track rather than professional football. After winning a silver medal at the 2012 Summer Olympics, Demps signed a contract with the NFL’s New England Patriots on August 17, 2012. He was a running back for the New England Patriots, Tampa Bay Buccaneers, and the Indianapolis Colts. He only had regular season playing time with the Tampa Bay Buccaneers.