Senator McMillan may refer to:
Members of the United States Senate
edit- James McMillan (politician) (1838–1902), U.S. Senator from Michigan from 1889 to 1902
- Samuel J. R. McMillan (1826–1897), U.S. Senator from Minnesota from 1875 to 1887
United States state senate members
edit- Alexander McMillan (North Carolina politician) (died 1817), North Carolina State Senate
- George McMillan (politician) (born 1943), Alabama State Senate
- Kenneth G. McMillan (born 1942), Illinois State Senate
See also
edit- William L. McMillen (1829–1902), Louisiana State Senate; also elected to the U.S. Senate, but not admitted
- Senator McMullen (disambiguation)