Óscar Humberto Mejía Victores (born 1930) was President of Guatemala from 8 August 1983 to 14 January 1986. 1930 is a common year starting on Wednesday. ... The President of Guatemala has been the usual title of the leader of Guatemala since 1851, when that title was assumed by José Rafael Carrera, who had been acting as head of government as general and Caudillo since 1840. ... August 8 is the 220th day of the year in the Gregorian Calendar (221st in leap years), with 145 days remaining. ... 1983 is a common year starting on Saturday of the Gregorian calendar. ... January 14 is the 14th day of the year in the Gregorian calendar. ... 1986 is a common year starting on Wednesday of the Gregorian calendar. ...