Juan Traian Iliesco (born Ion Traian Iliescu) (18 April 1898 in Brăila, Romania – 2 February 1968 in La Plata[1]) was a Romanian Argentine chess master.
Iliesco finished 1st in Argentine championship in 1939, but he could not win the title as a foreigner (Romanian citizen).
Iliesco (then Argentine citizen) lost a match for the title to Rossetto (0.5 : 4.5) at Nueve de Julio 1944.
Iliesco played also many times in international tournaments in Mar del Plata.
[5] He lost a match against Guimard (2 : 6) at Mar del Plata 1944; took 9th at La Plata (Jockey Club) 1944 (Najdorf won); and took 5th in San Francisco, Argentina (César Corte won).