The1812 United States Senate election in Pennsylvania was held on December 8, 1812.Abner Lacock was elected by thePennsylvania General Assembly to theUnited States Senate.[1]
IncumbentDemocratic-RepublicanAndrew Gregg, who was elected in1806, was not a candidate for re-election to another term. The Pennsylvania General Assembly, consisting of theHouse of Representatives and theSenate, convened on December 8, 1812, to elect a new Senator to fill the term beginning on March 4, 1813. The results of the vote of both houses combined are as follows:
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic-Republican | Abner Lacock | 63 | 50.00 | |
| Democratic-Republican | Daniel Montgomery, Jr. | 26 | 20.63 | |
| Independent | James Brady | 22 | 17.46 | |
| Democratic-Republican | Isaac Weaver | 6 | 4.76 | |
| N/A | Not voting | 9 | 7.14 | |
| Totals | 126 | 100.00% | ||
| Preceded by | Pennsylvania U.S. Senate election (Class III) 1812 | Succeeded by |