| Election Name: | 1817 Connecticut gubernatorial election |
| Country: | Connecticut |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1816 Connecticut gubernatorial election |
| Previous Year: | 1816 |
| Next Election: | 1818 Connecticut gubernatorial election |
| Next Year: | 1818 |
| Election Date: | 10 April 1817 |
| Nominee1: | Oliver Wolcott Jr. |
| Party1: | Democratic-Republican Party (United States) |
| Popular Vote1: | 14,593 |
| Percentage1: | 51.16% |
| Nominee2: | John Cotton Smith |
| Party2: | Federalist Party (United States) |
| Popular Vote2: | 13,719 |
| Percentage2: | 48.10% |
| Map Size: | 220px |
| Governor | |
| Before Election: | John Cotton Smith |
| Before Party: | Federalist Party (United States) |
| After Election: | Oliver Wolcott Jr. |
| After Party: | Democratic-Republican Party (United States) |
The 1817 Connecticut gubernatorial election was held on 10 April 1817 in order to elect the Governor of Connecticut. Incumbent Federalist Governor of Connecticut John Cotton Smith lost re-election against Democratic-Republican nominee and former United States Secretary of the Treasury Oliver Wolcott Jr.[1]
On election day, 10 April 1817, Federalist nominee John Cotton Smith lost re-election by a margin of 874 votes against his opponent Democratic-Republican nominee Oliver Wolcott Jr., thereby losing Federalist control over the office of Governor to the Democratic-Republicans. Wolcott was sworn in as the 24th Governor of Connecticut on 8 May 1817.[2]