| Election Name: | 1860 Maine gubernatorial election |
| Country: | Maine |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1859 Maine gubernatorial election |
| Previous Year: | 1859 |
| Next Election: | 1861 Maine gubernatorial election |
| Next Year: | 1861 |
| Election Date: | 10 September 1860 |
| Nominee1: | Israel Washburn Jr. |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 69,843 |
| Percentage1: | 56.56% |
| Nominee2: | Ephraim K. Smart |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 51,878 |
| Percentage2: | 42.02% |
| Map Size: | 300px |
| Governor | |
| Before Election: | Lot M. Morrill |
| Before Party: | Republican Party (United States) |
| After Election: | Israel Washburn Jr. |
| After Party: | Republican Party (United States) |
The 1860 Maine gubernatorial election was held on 10 September 1860 in order to elect the Governor of Maine. Republican nominee and incumbent member of the U.S. House of Representatives from Maine's 5th district Israel Washburn Jr. defeated Democratic nominee and former member of the Maine House of Representatives Ephraim K. Smart and Constitutional Union nominee and former member of the Maine House of Representatives Phinehas Barnes.[1]
On election day, 10 September 1860, Republican nominee Israel Washburn Jr. won the election by a margin of 17,965 votes against his foremost opponent Democratic nominee Ephraim K. Smart, thereby retaining Republican control over the office of governor. Washburn was sworn in as the 29th Governor of Maine on 2 January 1861.[2]