| Election Name: | 1851 United States Senate election in Pennsylvania |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1845 United States Senate election in Pennsylvania |
| Previous Year: | 1845 |
| Next Election: | 1857 United States Senate election in Pennsylvania |
| Next Year: | 1857 |
| Election Date: | January 14, 1851 |
| Image1: | File:Richard Brodhead (US Senator from Pennsylvania).jpg |
| Nominee1: | Richard Brodhead |
| Party1: | Democratic Party (United States) |
| Electoral Vote1: | 76 |
| Percentage1: | 57.1% |
| Nominee2: | Andrew W. Loomis |
| Party2: | Whig Party (United States) |
| Electoral Vote2: | 12 |
| Percentage2: | 9.0% |
| Image3: | File:3x4.svg |
| Nominee3: | Alexander Brown |
| Party3: | Whig Party (United States) |
| Electoral Vote3: | 11 |
| Percentage3: | 8.3% |
| Senator | |
| Before Election: | Daniel Sturgeon |
| Before Party: | Democratic Party (United States) |
| After Election: | Richard Brodhead |
| After Party: | Democratic Party (United States) |
The 1851 United States Senate election in Pennsylvania was held on January 14, 1851. Richard Brodhead was elected by the Pennsylvania General Assembly to the United States Senate.[1]
The Pennsylvania General Assembly, consisting of the House of Representatives and the Senate, convened on January 14, 1851, to elect a Senator to serve the term beginning on March 4, 1851. The results of the vote of both houses combined are as follows:
|-|-bgcolor="#EEEEEE"| colspan="3" align="right" | Totals| align="right" | 133| align="right" | 100.00%|}