|Elections in Pennsylvania|
The Mayoral election of 1957 in Pittsburgh, Pennsylvania was held on Tuesday, November 5, 1957. The incumbent mayor, David Lawrence of the Democratic Party won an unprecedented fourth term. Lawrence defeated former Court of Common Pleas Judge John Drew. For the third straight election, the powerful mayor gained quiet support from the Republican business community for his urban renewal projects, which compromised the GOP candidate's position.
- "Republican mayoral candidates through the years". Pittsburgh Post-Gazette. 7 November 2007. Retrieved 18 September 2009.
| Pittsburgh mayoral election