1799 Pennsylvania gubernatorial election

The 1799 Pennsylvania gubernatorial election was between two candidates. Incumbent governor Thomas Mifflin was not running. The race was between Federalist U.S. Senator James Ross and Democratic-Republican Thomas McKean. The retired Chief Justice of the Pennsylvania Supreme Court, McKean was a Federalist and a Mifflin ally, as both supported strong state executive power but rejected the domestic policies of the national government.

Some historians have pointed to McKean's victory as a forecast of Thomas Jefferson's election in the 1800 United States presidential election the next year.