1956 United States presidential election in Wyoming

The 1956 United States presidential election in Wyoming took place on November 6, 1956, as part of the 1956 United States presidential election. State voters chose three representatives, or electors, to the Electoral College, who voted for president and vice president.

Wyoming was won by incumbent President Dwight D. Eisenhower (R–Pennsylvania), running with Vice President Richard Nixon, with 60.08 percent of the popular vote, against Adlai Stevenson (D–Illinois), running with Senator Estes Kefauver, with 39.92 percent of the popular vote, a Republican victory margin of 20.2%. This margin represented a slight decrease from Eisenhower's victory in the state 4 years earlier in 1952, despite the fact that he won nationwide by a larger margin. Nevertheless, Wyoming still weighed in as 2.8% more Republican than the rest of the nation. Ironically enough, despite his margins in most of the counties he won being slightly less than 1952.

Eisenhower's underperformance relative to 1952 was not unique to just Wyoming, as most of the Mountain West swung a few points against him. Given the fact that the state's economy relied heavily upon agriculture, this is possibly due to a 5 year long drought in the High Plains, which encompasses parts of Wyoming, Montana, Colorado, and New Mexico.