The 1863 Ohio gubernatorial election was held on October 13, 1863. National Union nominee John Brough defeated Democratic nominee Clement Vallandigham with 60.61% of the vote. The campaign was dominated by Vallandingham's May 5 arrest, conviction, and deportation for a speech critical of President Abraham Lincoln and the conduct of the American Civil War. He was nominated in absentia by the Democratic Party.

Quick facts Nominee, Party ...
1863 Ohio gubernatorial election|
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 County results
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Brough
50â60% 60â70% 70â80% 80â90% 90â100% |
Vallandigham
50â60% 60â70%
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