Luis Arturo González López (21 December 1900 – 11 November 1965) was a politician in Guatemala and the acting President of Guatemala from 27 July 1957 to 24 October 1957.

Born in the town of Zacapa, González López studied law, and served as a judge in several cities.^[1] He was a member of the Supreme Court for seven years from 1945 to 1951, before being removed: reports stated that he was removed due to pressure from the communist parties.^[1] He was appointed Vice-President to Carlos Castillo Armas in 1957.^[1] On 26 July 1957, Castillo Armas was shot dead in the Guatemalan capital by a member of the presidential guard.^[2][3] González López held the position of "First Presidential Designate", and was sworn in as interim president on 27 July.^[4]

Supporters of Castillo Armas were considering forming a military junta and seizing power, but were dissuaded by Edwin J. Sparks. the U.S. ambassador to Guatemala. The U.S. government preferred to preserve a facade of democracy, rather than have Guatemala revert to a blatant dictatorship.^[5] Elections were held in October 1957, complicated by pressure from the U.S. government, the government of Dominica, and the army.^[5]

The centrist Miguel Ortiz Passarelli won a plurality in these elections, but supporters of Miguel Ydígoras Fuentes, who had also been a candidate in the election, rioted.^[6][2] The Guatemalan government declared martial law for a period of 30 days. On 24 October, a group of 80 military officers marched into the Presidential palace and replaced González López with a three-person junta led by army Colonel Óscar Mendoza Azurdia.^[6] New elections were held in January 1958. Ydígoras Fuentes comfortably won this election and seized power for himself soon after.^[2]