| Election Name: | 1847 Philadelphia mayoral election |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 1846 |
| Next Year: | 1848 |
| 1Blank: | General election vote |
| 2Blank: | General election percentage |
| 3Blank: | City Council vote |
| 4Blank: | City Council percentage |
| Image1: | File:John-Swift-Mayor-of-Philadelphia-e1486412581340 (1).jpg |
| Nominee1: | John Swift |
| 1Data1: | 6,046 |
| 2Data1: | 49.78% |
| 3Data1: | 29 |
| 4Data1: | 100% |
| Nominee2: | Altamont Phillips |
| 1Data2: | 3,550 |
| 2Data2: | 29.23% |
| 3Data2: | 0 |
| 4Data2: | 0.00% |
| Image3: | File:3x4.svg |
| Nominee3: | Peter Fritz |
| 1Data3: | 2,530 |
| 2Data3: | 20.83% |
| Mayor | |
| Before Election: | John Swift |
| Before Party: | Whig Party (United States) |
| After Election: | John Swift |
| After Party: | Whig Party (United States) |
The 1847 Philadelphia mayoral election saw John Swift reelected to office for an eleventh overall non-consecutive term.
This was the last regularly-scheduled mayoral election in which the City Council selected the mayor, as all subsequent mayoral elections either reached a majority in the general election or used a different electoral system.
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.