Gedeon Barcza (August 21, 1911 – February 27, 1986) was a Hungarian chess grandmaster.

In 1940, Barcza took third place, behind Max Euwe and Milan Vidmar, at Maróczy Jubiläum in Budapest.

In September 1942, he took sixth place at the first European Championship in Munich; the event was won by Alexander Alekhine.

In 1948, he took second place in Karlovy Vary; the event was won by Jan Foltys.

In 1950, he tied for second/fourth place in Salzbrunn (Szczawno Zdrój); the event was won by Paul Keres.