Brigadier General Óscar Humberto Mejía Víctores (9 December 1930 – 1 February 2016) was the 27th President of Guatemala from 8 August 1983 to 14 January 1986.
A member of the military, he was president during the apex of repression and death squad activity in the Central American nation.
When he was minister of defense, he rallied a coup against José Efraín Ríos Montt, then president of Guatemala, which he justified by declaring that the government was being abused by religious fanatics.
He allowed for a return to democracy, with elections for a constituent assembly in 1984 followed by general elections in 1985.