Following is a table of United States presidential elections in Oregon, ordered by year. Since its admission to statehood in 1859, Oregon has participated in every U.S. presidential election.
Winners of the state are in bold. The shading refers to the state winner, and not the national winner.
The election of 1860 was a complex realigning election in which the breakdown of the previous two-party alignment culminated in four parties each competing for influence in different parts of the country. The result of the election, with the victory of an ardent opponent of slavery, spurred the secession of eleven states and brought about the American Civil War.