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 Following is a table of United States presidential elections in Ohio, ordered by year. Since its admission to statehood in 1803, Ohio has participated in every U.S. presidential election.

Ohio is considered a swing state, being won by either the Democratic or Republican candidates from election to election. As a swing state, Ohio is usually targeted by both major-party campaigns, especially in competitive elections.^[1] Pivotal in the election of 1888, Ohio has been a regular swing state since 1980.^[2][3]

Additionally, Ohio is considered a bellwether. Historian R. Douglas Hurt asserts that not since Virginia "had a state made such a mark on national political affairs".^[4] The Economist notes that "This slice of the mid-west contains a bit of everything American—part north-eastern and part southern, part urban and part rural, part hardscrabble poverty and part booming suburb".^[5] Ohio has had four misses (all Democratic winner nationally) in the Presidential election (Grover Cleveland in 1884 and 1892, Franklin D. Roosevelt in 1944, and John F. Kennedy in 1960) and has had the longest perfect streak of any state, voting for the winning presidential candidate in each election from 1964 to 2016, and in 33 of the 37 held since the Civil War—although this streak will end if Joe Biden is certified as the winner in 2020. No Republican has ever won the presidency without winning Ohio, and since the advent of the duopoly two-party system, Democrats have won the presidency without winning Ohio only four times: Grover Cleveland in 1884 and 1892, Franklin D. Roosevelt in 1944, and John F. Kennedy in 1960. When Joe Biden is certified as the winner in 2020, he will be the fifth.

Winners of the state are in bold. 

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