Jeffery Barnard Demps (born January 8, 1990) is an American football running back. Demps is also a track and field athlete. 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.