| Wyoming Republican Party | |
| Chairperson: | W. Frank Eathorne |
| Colors: | Red |
| National: | Republican Party |
| Membership Year: | 2021 |
| Membership: | 203,961[1] |
| Ideology: | Conservatism |
| Headquarters: | 1714 Capitol Avenue, Cheyenne, WY. 82001 |
| Seats1 Title: | Wyoming Senate |
| Seats2 Title: | Wyoming House of Representatives |
| Seats3 Title: | U.S. Senate |
| Seats4 Title: | U.S. House of Representatives |
| Seats5 Title: | Statewide Executive Offices |
| State: | Wyoming |
| Leader1 Name: | Mark Gordon |
| Leader1 Title: | Governor of Wyoming |
| Leader2 Title: | Secretary of State |
| Leader2 Name: | Chuck Gray |
The Wyoming Republican Party is the affiliate of the Republican Party in Wyoming. It is currently the dominant party in the state, and is one of the strongest affiliates of the national Republican Party. The party currently controls Wyoming's at-large U.S. House seat, both U.S. Senate seats, the governorship, and has nearly unanimous positions in both houses of the state legislature.
In 2021, the Wyoming Republican Party voted to stop recognizing Liz Cheney as a Republican. Cheney had criticized former president Donald Trump for attempting to overturn the 2020 election results after he lost the election and inciting a pro-Trump mob to assault the U.S. Capitol.[2] In 2022, the Wyoming Republican Party supported a primary challenger against Cheney.[3]
| At-large |
| 1890 | Francis E. Warren | 8,879 | 55.38% | Won | |
| 1892 (special) | Edward Ivinson | 7,509 | 43.52% | Lost | |
| 1894 | William A. Richards | 10,149 | 52.61% | Won | |
| 1898 | DeForest Richards | 10,383 | 52.43% | Won | |
| 1902 | DeForest Richards | 14,483 | 57.81% | Won | |
| 1904 (special) | Bryant B. Brooks | 17,765 | 57.48% | Won | |
| 1906 | Bryant B. Brooks | 16,317 | 60.20% | Won | |
| 1910 | William E. Mullen | 15,235 | 40.17% | Lost | |
| 1914 | Hilliard S. Ridgely | 19,174 | 44.20% | Lost | |
| 1918 | Robert D. Carey | 23,825 | 56.11% | Won | |
| 1922 | John W. Hay | 30,387 | 49.41% | Lost | |
| 1924 (special) | E. J. Sullivan | 35,275 | 44.88% | Lost | |
| 1926 | Frank Emerson | 35,651 | 50.90% | Won | |
| 1930 | Frank Emerson | 38,058 | 50.58% | Won | |
| 1932 (special) | Harry R. Weston | 44,692 | 47.22% | Lost | |
| 1934 | Alonzo M. Clark | 38,792 | 41.36% | Lost | |
| 1938 | Nels H. Smith | 57,288 | 59.81% | Won | |
| 1942 | Nels H. Smith | 37,568 | 48.68% | Lost | |
| 1946 | Earl Wright | 38,333 | 47.12% | Lost | |
| 1950 | Frank A. Barrett | 54,441 | 56.15% | Won | |
| 1954 | Milward Simpson | 56,275 | 50.50% | Won | |
| 1958 | Milward Simpson | 52,488 | 46.64% | Lost | |
| 1962 | Clifford Hansen | 64,970 | 54.47% | Won | |
| 1966 | Stanley Hathaway | 65,624 | 54.29% | Won | |
| 1970 | Stanley Hathaway | 74,249 | 62.79% | Won | |
| 1974 | Dick Jones | 56,645 | 44.12% | Lost | |
| 1978 | John Ostlund | 67,595 | 49.14% | Lost | |
| 1982 | Warren A. Morton | 62,128 | 36.86% | Lost | |
| 1986 | Pete Simpson | 75,841 | 46.04% | Lost | |
| 1990 | Mary Mead | 55,471 | 34.65% | Lost | |
| 1994 | Jim Geringer | 104,638 | 58.72% | Won | |
| 1998 | Jim Geringer | 97,235 | 55.60% | Won | |
| 2002 | Eli Bebout | 88,873 | 47.92% | Lost | |
| 2006 | Ray Hunkins | 58,100 | 30.01% | Lost | |
| 2010 | Matt Mead | 123,780 | 65.68% | Won | |
| 2014 | Matt Mead | 99,700 | 59.39% | Won | |
| 2018 | Mark Gordon | 136,412 | 67.12% | Won | |
| 2022 | Mark Gordon | 143,696 | 74.07% | Won |