William, Bill or Billy Coyle may refer to:
William R. Coyle (1878–1962), U.S. Representative from Pennsylvania William J. Coyle (1888–1977), Lieutenant Governor of Washington Bill Coyle (baseball), pitcher in Major League Baseball Bill Coyle (poet), American poet and translator Billy Coyle (footballer) (born 1926), English footballer Billy Coyle, candidate in the United States House of Representatives elections in Oklahoma, 2010