2004 United States presidential election in Oregon

The 2004 United States presidential election in Oregon took place on November 2, 2004, and was part of the 2004 United States presidential election. Voters chose seven representatives, or electors, to the Electoral College, who voted for president and vice president.

Oregon was won by Democratic Party nominee John Kerry by 4.16 points. Prior to the election, news organizations considered the state a tossup or leaning Kerry. A moderate amount of campaigning took place here, as Kerry was ahead in every poll after October 14, each with between 47% and 53% of the vote. Though the state had been very competitive and barely carried by Al Gore four years earlier, Oregon is considered a blue state as no Republican presidential candidate has won it since Ronald Reagan in 1984. While larger than Gore's, Kerry's margin of victory in Oregon was relatively modest. This is the most recent presidential election in which Oregon was considered a swing state.

As of the 2024 presidential election, this is the most recent election in which Clackamas County voted for a Republican presidential candidate, as well as the most recent time the state's margin would be in the single digits, and the latest presidential election in which a Republican received more than 45% of the state's vote. Bush would win re-election nationwide in 2004, the first time in history that a Republican had been elected twice as president without ever carrying Oregon.