Guatemalan general election, 1966

General elections were held in Guatemala on 6 March 1966. After no candidate received 50% or more of the national vote, Julio César Méndez Montenegro was elected President by Congress on 10 May. On the Congressional elections, the Revolutionary Party won 28 of the 54 seats. Voter turnout was 56.27% in the presidential election and 55.01% in the Congressional elections