| Election Name: | 1856 Philadelphia mayoral election |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 1854 |
| Next Year: | 1858 |
| Image1: | File:Richard Vaux portrait photograph (1).jpg |
| Nominee1: | Richard Vaux |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 29,534 |
| Percentage1: | 53.45% |
| Nominee2: | Henry Dunning Moore |
| Party2: | American Republican |
| Popular Vote2: | 25,445 |
| Percentage2: | 46.05% |
| Mayor | |
| Before Election: | Robert T. Conrad |
| Before Party: | Whig Party (United States) |
| After Election: | Richard Vaux |
| After Party: | Democratic Party (United States) |
The 1856 Philadelphia mayoral election saw the election of Richard Vaux.