The 1805 Massachusetts gubernatorial election was held on April 2.
Federalist Governor Caleb Strong was re-elected to a sixth consecutive one-year term in office, defeating Republican James Sullivan for the second time, only narrowly achieving the majority necessary for election.
^"Massachusetts 1805 Governor". Tufts Digital Collations and Archives. A New Nation Votes: American Election Returns 1787–1825. Tufts University. Retrieved 6 Sep 2020.