A general election was held in the U.S. state of Wyoming on Tuesday, November 6, 1990. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. Democrats Mike Sullivan and Kathy Karpan were re-elected as Governor and Secretary of State by landslide margins, while Democrat Lynn Simons was defeated for re-election by Republican Diana Ohman. Republicans also continued their winning streak in the elections for State Auditor and State Treasurer.
| Elections in Wyoming |
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