Senator Bates may refer to:
Alan Bates (politician) (1945–2016), Oregon State Senate David Bates (Rhode Island politician) (born 1941), Rhode Island State Senate Edward Bates (1793–1869), Missouri State Senate Erastus Newton Bates (1828–1898), Minnesota State Senate Gail H. Bates (born 1945), Maryland State Senate Henry C. Bates (1843–1909), Vermont State Senate Henry M. Bates (1808–1865), Vermont State Senate Isaac C. Bates (1779–1845), Massachusetts State Senate Joshua Hall Bates (1817–1908), Ohio State Senate Martin W. Bates (1786–1869), U.S. Senator from Delaware Patricia Bates (born 1939), California State Senate Sanford Bates (1884–1982), Massachusetts State Senate William Gelston Bates (1803–1880), Massachusetts State Senate
See also William B. Bate (1826–1905), U.S. Senator from New Jersey from 1807 to 1905 William J. Bate (1934–2011), New Jersey State Senate