| Election Name: | 1858 Philadelphia mayoral election |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 1856 |
| Next Year: | 1860 |
| Image1: | File:Alexander Henry (1).jpg |
| Nominee1: | Alexander Henry |
| Party1: | People's Party |
| Popular Vote1: | 33,868 |
| Percentage1: | 53.93% |
| Nominee2: | Richard Vaux |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 28,934 |
| Percentage2: | 46.07% |
| Mayor | |
| Before Election: | Richard Vaux |
| Before Party: | Democratic Party (United States) |
| After Election: | Alexander Henry |
| After Party: | Republican Party (United States) |
The 1858 Philadelphia mayoral election saw the election of Alexander Henry.