1804 United States presidential election in Massachusetts

A presidential election was held in Massachusetts on November 5, 1804, as part of the 1804 United States presidential election. The Democratic-Republican Party's ticket of incumbent president Thomas Jefferson and former New York governor George Clinton defeated the Federalist Party's ticket.

Jefferson won the national election in a landslide over the de facto Federalist candidate, Charles Cotesworth Pinckney. Massachusetts was one of three states where electors were chosen by popular vote which the Federalists seriously contested, in addition to Maryland and New Hampshire. Although a clandestine gathering of Federalist members of Congress had nominated Pinckney in February, the Federalist electors in Massachusetts were formally unpledged. The Boston Columbian Centinel, the state's official Federalist publication, denied that the electors were pledged to any candidate prior to the election. Manning J. Dauer attributes the Federalists' defeat in Massachusetts to the uncertainty surrounding the identity of the Federalist nominees.