| Election Name: | 1843 Boston mayoral election |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1842 Boston mayoral election |
| Previous Year: | 1842 |
| Election Date: | December 11, 1843 |
| Next Election: | 1844–45 Boston mayoral election |
| Next Year: | 1844–45 |
| Image1: | Martin Brimmer 5210004 015 009 (3x4).jpg |
| Candidate1: | Martin Brimmer |
| Party1: | Whig Party (United States) |
| Popular Vote1: | 4,874 |
| Percentage1: | 66.82% |
| Candidate2: | George Savage |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 2,237 |
| Percentage2: | 30.68% |
| Mayor | |
| Before Election: | Martin Brimmer |
| Before Party: | Whig Party (United States) |
| After Election: | Martin Brimmer |
| After Party: | Whig Party (United States) |
The 1843 Boston mayoral election saw the reelection of Whig Party incumbent Martin Brimmer. It was held on December 11, 1843.
Brimmer was the Whig Party nominee while Savage was the Democratic Party/locofoco nominee. The Whigs won a large victory in the coinciding municipal elections.[1]