Philip Harold Hayes (born September 1, 1940) was a U.S. Representative from Indiana.
Born in Battle Creek, Michigan, Hayes attended Rensselaer (Indiana) Elementary School. He graduated from Rensselaer High School, 1958. B.A., Indiana University, 1963. J.D., Indiana University Law School, 1967. He was admitted to the Indiana bar in 1967 and District of Columbia bar in 1977. He was a lawyer in private practice. Deputy prosecuting attorney, Vanderburgh County, Indiana from 1967 to 1968. He served as member of the Indiana State senate from 1971 to 1974.
Hayes was elected as a Democrat to the Ninety-fourth Congress (January 3, 1975 – January 3, 1977). He was not a candidate for reelection in 1976, but was the unsuccessful primary election challenger to three-term incumbent Vance Hartke for nomination to the United States Senate. County attorney, Vanderburgh County, Indiana from 2001 to 2002. He is a resident of Evansville, Indiana.