| Election Name: | 1957 Pittsburgh mayoral election |
| Flag Image: | Flag of Pittsburgh, Pennsylvania.svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1953 Pittsburgh mayoral election |
| Previous Year: | 1953 |
| Next Election: | 1959 Pittsburgh mayoral special election |
| Next Year: | 1959 (special) |
| Election Date: | November 5, 1957 |
| Image1: | David L. Lawrence (1).jpg |
| Nominee1: | David Lawrence |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 128,532 |
| Percentage1: | 65.2% |
| Nominee2: | John Drew |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 68,644 |
| Percentage2: | 34.8% |
| Mayor | |
| Before Election: | David Lawrence |
| Before Party: | Democratic Party (United States) |
| After Election: | David Lawrence |
| After Party: | Democratic Party (United States) |
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.