Senator Barrett may refer to:
Bill Barrett (1929–2016), Nebraska State Senate Dan Barrett (politician) (fl. 2000s–2010s), North Carolina State Senate Debby Barrett (fl. 2000s–2010s), Montana State Senate Elisha T. Barrett (1902–1966), New York State Senate Frank A. Barrett (1892–1962), U.S. Senator from Wyoming from 1953 to 1959 James Barrett (Vermont judge) (1814–1900), Vermont State Senate John Barrett (Missouri politician) (1915–2000), Missouri State Senate Michael J. Barrett (born 1948), Massachusetts State Senate Tom Barrett (Michigan politician) (born 1981), Michigan State Senate Tom Barrett (Wisconsin politician) (born 1953), Wisconsin State Senate William N. Barrett (1855–1916), Oregon State Senate
See also Elizabeth Barrett-Anderson (born 1953), Senate of Guam