| Election Name: | 1966 Massachusetts gubernatorial election |
| Country: | Massachusetts |
| Flag Year: | 1908 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1964 Massachusetts gubernatorial election |
| Previous Year: | 1964 |
| Next Election: | 1970 Massachusetts gubernatorial election |
| Next Year: | 1970 |
| Election Date: | November 8, 1966 |
| Image1: | John Volpe (1970).jpg |
| Nominee1: | John Volpe |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 1,277,358 |
| Percentage1: | 62.58% |
| Nominee2: | Edward McCormack Jr. |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 752,720 |
| Percentage2: | 36.88% |
| Map Size: | 250px |
| Governor | |
| Before Election: | John Volpe |
| Before Party: | Republican Party (United States) |
| After Election: | John Volpe |
| After Party: | Republican Party (United States) |
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 Attorney General 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.
Governor Volpe was unopposed for renomination.
Volpe defeated McCormack by over a half million votes. He won the majority of the votes in every Massachusetts county.[1] This was the last general election in which the Governor and Lt. Governor were elected separately.