1849 United States Senate election in Pennsylvania

The 1849 United States Senate election in Pennsylvania was held on January 10, 1849. James Cooper was elected by the Pennsylvania General Assembly to the United States Senate.

Results
Incumbent Democrat Simon Cameron, who was elected in 1845, was not a candidate for re-election to another term. The Pennsylvania General Assembly, consisting of the House of Representatives and the Senate, convened on January 10, 1849, to elect a new Senator to fill the term beginning on March 4, 1849. Three ballots were recorded. The results of the third and final ballot of both houses combined are as follows:


 * -bgcolor="#EEEEEE"
 * colspan="3" align="right" | Totals
 * align="right" | 133
 * align="right" | 100.00%
 * }
 * }