Leo Carter DeTray (November 20, 1888 – October 9, 1967) was an American football player and coach of football and basketball. He served as the head football the Wittenberg University in Springfield, Ohio in 1910, University of Mississippi (Ole Miss) in 1912 and at Knox College in Galesburg, Illinois from 1915 to 1916, compiling a career college football coaching record of 10–7–2. DeTray was also the head basketball coach at Knox from 1915 to 1917, tallying a mark of 10–10.