| Election Name: | 1859 Maine gubernatorial election |
| Country: | Maine |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1858 Maine gubernatorial election |
| Previous Year: | 1858 |
| Next Election: | 1860 Maine gubernatorial election |
| Next Year: | 1860 |
| Election Date: | 12 September 1859 |
| Nominee1: | Lot M. Morrill |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 57,180 |
| Percentage1: | 55.73% |
| Nominee2: | Manassah H. Smith |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 45,387 |
| Percentage2: | 44.24% |
| Governor | |
| Before Election: | Lot M. Morrill |
| Before Party: | Republican Party (United States) |
| After Election: | Lot M. Morrill |
| After Party: | Republican Party (United States) |
The 1859 Maine gubernatorial election was held on 12 September 1859 in order to elect the Governor of Maine. Incumbent Republican Governor Lot M. Morrill won re-election against Democratic nominee Manassah H. Smith in a second rematch of the previous elections.[1]
On election day, 12 September 1859, incumbent Republican Governor Lot M. Morrill won re-election by a margin of 11,793 votes against his opponent Democratic nominee Manassah H. Smith, thereby retaining Republican control over the office of governor. Morrill was sworn in for his third term on 6 January 1860.[2]