| Election Name: | 1875 Boston mayoral election |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1874 Boston mayoral election |
| Previous Year: | 1874 |
| Election Date: | December 14, 1875 |
| Next Election: | 1876 Boston mayoral election |
| Next Year: | 1876 |
| Image1: | Samuel C. Cobb 5210004 015 023 (3x4).jpg |
| Candidate1: | Samuel C. Cobb |
| Party1: | Nonpartisan candidate |
| Popular Vote1: | 14,932 |
| Percentage1: | 55.05% |
| Candidate2: | Halsey J. Boardman |
| Party2: | Fusion (Democratic and Republican) |
| Popular Vote2: | 12,178 |
| Percentage2: | 44.90% |
| Color2: | 800080 |
| Mayor | |
| Before Election: | Samuel C. Cobb |
| Before Party: | Nonpartisan candidate |
| After Election: | Samuel C. Cobb |
| After Party: | Nonpartisan candidate |
The Boston mayoral election of 1875 saw the reelection of Samuel C. Cobb to a third consecutive term.
While incumbent mayor Samuel C. Cobb initially said he would not seek election, a petition asking that he serve a third term received the signatures of roughly 2,000 signatures leading Bostonians. Cobb agreed to run again. The city committees of both the Democratic and Republican Party opted to unite on running a challenger against Cobb.[1]
After a spirited campaign, Cobb won reelection.[1]