| Election Name: | 1848 Philadelphia mayoral election |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 1847 |
| Next Year: | 1849 |
| Image1: | File:John-Swift-Mayor-of-Philadelphia-e1486412581340 (1).jpg |
| Nominee1: | John Swift |
| Popular Vote1: | 8,440 |
| Percentage1: | 62.09% |
| Nominee2: | Samuel Badger |
| Popular Vote2: | 5,079 |
| Percentage2: | 37.36% |
| Mayor | |
| Before Election: | John Swift |
| Before Party: | Whig Party (United States) |
| After Party: | Whig Party (United States) |
The 1848 Philadelphia mayoral election saw the reelection of John Swift to a twelfth overall non-consecutive term.
Beginning in 1839, the city operated under a mixed electoral system. Citizens voted for mayor in a general election. If a candidate receive a majority of the vote, they would be elected mayor. However, if no candidate received a majority, the City Council would select a mayor from the top-two finishers.