| Election Name: | 1949 Pittsburgh mayoral election |
| Flag Image: | Flag of Pittsburgh, Pennsylvania.svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1945 Pittsburgh mayoral election |
| Previous Year: | 1945 |
| Next Election: | 1953 Pittsburgh mayoral election |
| Next Year: | 1953 |
| Election Date: | November 8, 1949 |
| Image1: | David L. Lawrence (1).jpg |
| Nominee1: | David Lawrence |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 152,081 |
| Percentage1: | 61.4% |
| Nominee2: | Tice Ryan |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 95,498 |
| Percentage2: | 38.6% |
| 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 1949 in Pittsburgh, Pennsylvania was held on Tuesday, November 8, 1949. David Lawrence of the Democratic Party was reelected to a second term. Despite commanding a powerful position within both local politics and the state party, Lawrence faced a major primary challenge after he failed to gain the endorsement of the AFL–CIO. However, he achieved a moderate victory over union leader Ed Leonard, in part due to the surprising support of the Republican business community, which championed Lawrence's urban renewal projects. After the primary scare, Lawrence defeated Republican Timothy "Tice" Ryan, an attorney, by what was then the biggest margin in city mayoral history.