Dennis Haley (born February 18, 1982, in Roanoke, Virginia) is a professional American and Canadian football linebacker who is currently a free agent. He most recently played for the BC Lions of the Canadian Football League. He was originally signed by the New York Jets of the National Football League as an undrafted free agent in 2005. He played college football at Virginia. Haley has also played for the Baltimore Ravens and San Francisco 49ers.