1972 United States presidential election in Pennsylvania

The 1972 United States presidential election in Pennsylvania took place on November 7, 1972, and was part of the 1972 United States presidential election. Voters chose 27 representatives, or electors to the Electoral College, who voted for president and vice president.

Pennsylvania strongly voted for the Republican nominee, President Richard Nixon, over the Democratic nominee, Senator George McGovern. Nixon won Pennsylvania by a large margin of 19.98%, winning every county except for Philadelphia. This result nonetheless was over 3% more Democratic than the nation at-large. As of the 2020 presidential election, this is the last election in which Allegheny County voted Republican, and the last time that county did not vote the same as Philadelphia.

As of 2020, this marked the last time when the Republican presidential nominee carried the state by double digits, as the only candidate to win the state by that margin was Democrat Barack Obama in 2008. This is the most recent election where Pennsylvania voted to the right of McGovern's home state of South Dakota. This was the only occasion between 1928 and 2008 that Fayette County and Washington County voted Republican. Westmoreland County voted Republican for the only time between 1928 and 2000. Meanwhile, Greene County cast only its second-ever Republican vote (after 1928), and its last until 2004.