Massachusetts gubernatorial election, 1966
The 1966 Massachusetts gubernatorial election was held on November 8, 1966. Governor
John A. Volpe was reelected to a four-year term.
 He defeated former
Edward J. McCormack, Jr. in the general election.
 This was the first election held since Governor's
Term of office was extended from two to four years.
Volpe ran unopposed in the Republican primary. McCormack defeated former Presidential aide
Kenneth O'Donnell in the Democratic primary.
Joseph E. McGuire defeated
Herbert L. Connolly in the Democratic primary for Lt. Governor. Francis W. Sargent ran unopposed in the Republican primary
Volpe defeated McCormack by over a half million votes. He won the majority of the votes in every Massachusetts county.
Francis W. Sargent defeated Joseph E. McGuire by 199,939 votes. It was the last general election in which the Governor and Lt. Governor were elected separately.