Miguel Cuéllar Gacharná (18 November 1916 – 5 December 1985)[1] was a Colombian chess master from Tinjacá.
He won individual silver medal at first board (+12 –2 =4) in the 16th Olympiad at Tel Aviv 1964.
[2] He won a bronze medal representing Colombia at the 1938 Bolivarian Games in Bogotá.
[3] In 1952, he tied for 3rd-4th in Mar del Plata (Julio Bolbochán and Héctor Rossetto won).
In 1962, he placed 22nd at the Stockholm Interzonal, defeating both Efim Geller and Viktor Korchnoi in individual games.