| Election Name: | 1890 Wyoming gubernatorial election |
| Country: | Wyoming |
| Type: | presidential |
| Turnout: | 26.41% of Total Population |
| Ongoing: | no |
| Next Election: | 1892 Wyoming gubernatorial special election |
| Next Year: | 1892 |
| Nominee1: | Francis E. Warren |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 8,879 |
| Percentage1: | 55.38% |
| Party2: | Democratic Party (United States) |
| Nominee2: | George W. Baxter |
| Popular Vote2: | 7,153 |
| Percentage2: | 44.62% |
| Map Size: | 325px |
| Governor | |
| Before Election: | Francis E. Warren |
| Before Party: | Republican Party (United States) |
| After Election: | Francis E. Warren |
| After Party: | Republican Party (United States) |
The 1890 Wyoming gubernatorial election was held on September 11, 1890, as the first gubernatorial election for the newly admitted state of Wyoming. Incumbent Territorial Governor Francis E. Warren ran for re-election as the Republican nominee against former Territorial Governor George W. Baxter, the Democratic nominee. Warren defeated Baxter by a decisive margin and became the first popularly elected Governor of Wyoming.
However, shortly after Warren's term began as governor, he was elected to the U.S. Senate by the newly constituted state legislature, and he resigned on November 24, 1890. Accordingly, Secretary of State Amos W. Barber became governor, and a special gubernatorial election was held in 1892.
Prior to the adoption of Wyoming's primary law in 1911, the political parties nominated their candidates for office by convention. Prior to the start of the Republican convention, incumbent Territorial Governor Francis E. Warren was seen as the likeliest, and the strongest, candidate.[1] The Republican Party ultimately nominated Warren, though his poor health at the time raised the possibility that he might need to be replaced on the ticket.[2]
Prior to the Democratic convention, speculation swirled around three names: former Territorial Governor George W. Baxter; banker T. B. Hicks; and Evanston businessman A. C. Beckwith.[1] Baxter was ultimately nominated by the Democratic convention by acclamation, queueing up a contest between two different territorial governors.[3]