Géza Fodor (Szeged, 6 May, 1927–Szeged, 28 September, 1977) was a Hungarian mathematician, working in set theory. He proved Fodor's lemma on stationary sets, one of the most important, and most used results in set theory. He was a professor at the Bolyai Institute of Mathematics at the Szeged University. He was vice-president, then president of the Szeged University. He was elected a corresponding member of the Hungarian Academy of Sciences.