The 1812 United States presidential election in Pennsylvania took place as part of the 1812 United States presidential election. Voters chose 25 representatives, or electors to the Electoral College, who voted for President and Vice President.

The 1812 United States presidential election was the seventh quadrennial presidential election. It was held from Friday, October 30, 1812, to Wednesday, December 2, 1812. Taking place in the shadow of the War of 1812, incumbent Democratic-Republican President James Madison defeated DeWitt Clinton, the Lieutenant Governor of New York and Mayor of New York City, who drew support from dissident Democratic-Republicans in the North as well as Federalists. It was the first presidential election to be held during a major war involving the United States.