Senator Nixon may refer to:
Members of the United States Senate George S. Nixon (1860–1912), U.S. Senator from Nevada from 1905 to 1912 Richard Nixon (1913–1994), U.S. Senator from California from 1950 to 1953
United States state senate members Drew Nixon (born 1959), Texas State Senate Jay Nixon (born 1956), Missouri State Senate Richard Nixon (Montana politician) (1901–1975), Montana State Senate