United States gubernatorial elections were held in November 1963, in two states. Kentucky, Louisiana and Mississippi hold their gubernatorial elections in odd numbered years, every 4 years, preceding the United States presidential election year.

Results State Incumbent Party Status Opposing candidates Kentucky Bert Combs Democratic Term-limited, Democratic victory Ned Breathitt (Democratic) 50.74% Louie Nunn (Republican) 49.26% Louisiana(Held, March 3, 1964) Jimmie Davis Democratic Term-limited, Democratic victory John McKeithen (Democratic) 60.72% Charlton Lyons (Republican) 37.50% Mississippi Ross Barnett Democratic Term-limited, Democratic victory Paul B. Johnson Jr. (Democratic) 61.94% Rubel Phillips (Republican) 38.06%

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