Senator Hart may refer to:

U.S. senators Gary Hart (born 1936), U.S. Senator from Colorado from 1975 to 1987 Philip Hart (1912–1976), U.S. Senator from Michigan from 1959 to 1976 Thomas C. Hart (1877–1971), U.S. Senator from Connecticut from 1945 to 1946

Senators of American state legislatures Alphonso Hart (1830–1910), Ohio State Senate Alvin N. Hart (1804–1874), Michigan State Senate Craig Hart (fl. 2020s), West Virginia State Senate Elijah Carson Hart (1854–1929), California State Senate Ephraim Hart (New York politician) (1774–1839), New York State Senate Fred J. Hart (politician) (1906–1983), Illinois State Senate Gary K. Hart (born 1943), California State Senate George D. Hart (1846–1932), Massachusetts State Senate George Z. Hart (1924–2013), Michigan State Senate Jack Hart (politician) (born 1961), Massachusetts State Senate Jerome T. Hart (1932–1995), Michigan State Senate John M. Hart (1866–1955), Virginia State Senate Melissa Hart (politician) (born 1962), Pennsylvania State Senate Phil Hart (politician) (fl. 2000s–present), Idaho State Senate Rita Hart (born 1970), Iowa State Senate Rufus Erastus Hart (1812–1891), Ohio State Senate Truman Hart (1784–1838), New York State Senate

See also Dennis J. Harte (1866–1917), New York State Senate