Elmer William McDevitt (December 9, 1887 – May 4, 1940) was an American football player and coach. He served as the head football coach at Northwestern University from 1920 to 1921 and at the University of Denver from 1923 to 1924, compiling a career college football record of 14–15–2. McDevitt was born on December 9, 1887, in Cloquet, Minnesota. He attended Duluth Central High School and Phillips Academy in Andover, Massachusetts for prep school. He then attended Yale University, where he played on the Yale Bulldogs football team as a guard in 1910 and 1911, before graduating in 1912.