| Election Name: | 1918 Wyoming gubernatorial election |
| Country: | Wyoming |
| Type: | presidential |
| Election Date: | November 5, 1918 |
| Ongoing: | no |
| Previous Election: | 1914 Wyoming gubernatorial election |
| Previous Year: | 1914 |
| Next Election: | 1922 Wyoming gubernatorial election |
| Next Year: | 1922 |
| Nominee1: | Robert D. Carey |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 23,825 |
| Percentage1: | 56.11% |
| Party2: | Democratic Party (United States) |
| Nominee2: | Frank L. Houx |
| Popular Vote2: | 18,640 |
| Percentage2: | 43.90% |
| Map Size: | 250px |
| Governor | |
| Before Election: | Frank L. Houx |
| Before Party: | Democratic Party (United States) |
| After Election: | Robert D. Carey |
| After Party: | Republican Party (United States) |
The 1918 Wyoming gubernatorial election took place on November 5, 1918. Following the election of Governor John B. Kendrick to the U.S. Senate in 1916, Secretary of State Frank L. Houx served as acting Governor. He ran for re-election and faced a stiff challenge in the Democratic primary from attorney William B. Ross. After defeating Ross by a decisive margin, he faced Robert D. Carey, the Republican nominee and the son of former Democratic Governor Joseph M. Carey. However, despite Houx's past electoral success, he faced difficult headwinds as Democratic candidates did poorly across the country in 1918. He ended up losing re-election to Carey by a wide margin.