2018 United States House of Representatives election in Wyoming

The 2018 United States House of Representatives election in Wyoming was held on November 6, 2018, to elect the U.S. representative from Wyoming's at-large congressional district, who would represent the state of Wyoming in the 116th United States Congress. The election coincided with the 2018 U.S. mid-term elections, as well as other elections to the House of Representatives, elections to the United States Senate and various state and local elections.

Key 2018 races in Wyoming included elections for Governor, Secretary of State of Wyoming, U.S. Senate, 15 of the 30 seats in the Wyoming State Senate, and all 60 seats in the Wyoming House of Representatives.

Incumbent Republican Liz Cheney won reelection to a second term.

Primary elections to determine each party's nominee for the general election were held on August 21, 2018.

Declared

 * Liz Cheney, incumbent U.S. Representative
 * Rod Miller, cowboy
 * Blake E. Stanley

Results
[[File:2018 WY-AL Republican primary.svg|thumb|Results by county: {{legend|#E27F7F|Cheney}}

{{legend|#FFB2B2|40–50%}}

{{legend|#E27F7F|50–60%}}

{{legend|#D75D5D|60–70%}}

{{legend|#D72F30|70–80%}}

{{legend|#C21B18|80–90%}} ]]

Declared

 * Travis Helm, businessman, attorney, and University of Wyoming College of Law graduate
 * Greg Hunter, former oil geologist

Results
[[File:2018 WY-AL Democratic primary.svg|thumb|Results by county: {{legend|#7996e2ff|Hunter}}

{{legend|#7996e2ff|50–60%}}

{{legend|#6674deff|60–70%}} {{legend|#aade87|Helm}}

{{legend|#aade87|50–60%}} ]]