| Election Name: | 1877 Philadelphia mayoral election |
| Country: | Philadelphia |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 1874 |
| Next Year: | 1881 |
| Image1: | File:William Stokley.jpg |
| Nominee1: | William S. Stokley |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 64,779 |
| Percentage1: | 51.13% |
| Nominee2: | Joseph L. Caven |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 61,913 |
| Percentage2: | 48.87% |
| Mayor | |
| Before Election: | William S. Stokley |
| Before Party: | Republican Party (United States) |
| After Election: | William S. Stokley |
| After Party: | Republican Party (United States) |
The 1877 Philadelphia mayoral election saw the reelection of William S. Stokley to a third consecutive term.