Senator Hatfield may refer to:
Members of the United States Senate Henry D. Hatfield (1875–1962), U.S. Senator from West Virginia from 1929 to 1935 Mark Hatfield (1922–2011), U.S. Senator from Oregon from 1967 to 1997 Paul G. Hatfield (1928–2000), U.S. Senator from Montana in 1978
United States state senate members Brian Hatfield (born 1966), Washington State Senate Ernest I. Hatfield (1890–1977), New York State Senate George J. Hatfield (1887–1953), California State Senate