Demetris Summers (born October 12, 1983) was a Canadian football running back for the Calgary Stampeders of the Canadian Football League. He was released from the team in April 2010. He was signed by the Dallas Cowboys as an undrafted free agent in 2006. He played college football at South Carolina before being expelled from the team March 1, 2005 after the coaching change and did not play anywhere in the 2005 season before entering early for the 2006 NFL draft, where he was undrafted. Summers won the 96th Grey Cup as a member of the Stampeders.