Bầu cử tổng thống Hoa Kỳ tại Oregon năm 1964

The 1964 United States presidential election in Oregon took place on November 3, 1964, as part of the 1964 United States presidential election. Voters chose six representatives, or electors, to the Electoral College, who voted for president and vice president.

Oregon was overwhelmingly won by incumbent President Lyndon B. Johnson (D–Texas), with 63.72% of the popular vote, against Senator Barry Goldwater (R–Arizona), with 35.96% of the popular vote. Johnson's victory marked the first time Oregon had voted for a Democratic presidential nominee since Franklin D. Roosevelt's landslide win in 1944. As of the 2024 presidential election, this is the last election in which the following counties voted for a Democratic presidential candidate: Baker, Douglas, Grant, Harney, Klamath, Lake, Polk, Sherman, Umatilla, Union, Wallowa, and Yamhill. Furthermore, Oregon as a whole, along with Benton and Hood River counties would not vote for a Democratic presidential candidate again until 1988, after which it has always gone Democratic. Clackamas, Jackson, Jefferson, and Washington counties would not vote Democratic again until 1992, while Gilliam and Marion counties would not vote Democratic again until 1996. This is also the last time that a Democratic presidential nominee has carried a majority of Oregon's counties.