The 1888 United States presidential election was the 26th quadrennial presidential election, held on Tuesday, November 6, 1888. Republican nominee Benjamin Harrison, a former U.S. senator from Indiana, defeated incumbent Democratic President Grover Cleveland of New York. It was the third of five U.S. presidential elections in which the winner did not win the national popular vote, which would not occur again until the 2000 US presidential election.

The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not directly for those offices, but instead for members of the Electoral College. These electors then cast direct votes, known as electoral votes, for president, and for vice president. The candidate who receives an absolute majority of electoral votes is then elected to that office. If no candidate receives an absolute majority of the votes for president, the House of Representatives elects the president; likewise if no one receives an absolute majority of the votes for vice president, then the Senate elects the vice president.