Pál Réthy (28 January 1905, Deva – 27 December 1962, Budapest) was a Hungarian chess master.
Born in Deva, Transylvania (then Austria-Hungary, now Romania), he lived in Hungary after World War I.
He took 7th at Vienna 1926 (Rudolf Spielmann won), took 7th at Brno 1931 (Salo Flohr won), took 10th at Budapest 1931 (Hungarian Chess Championship, Lajos Steiner won), tied for 10-11th at Budapest 1932 (Géza Maróczy won), took 2nd behind Esteban Canal at Budapest 1933, tied for 9-11th at Ujpest 1934 (Andor Lilienthal won), and tied for 2nd-3rd, behind Erich Eliskases, at Budapest 1934 (Maróczy Jubilee).
[1] In 1935, he played for Hungary in the 6th Chess Olympiad in Warsaw, scoring 8.5/14 (+5 –2 =7) at first reserve board.
After World War II, he tied for 13-14th at Budapest 1950 (HUN-ch, László Szabó, took 16th at Budapest 1955 (HUN-ch, Gedeon Barcza won), and tied for 13-14th at Budapest 1961 (HUN-ch, Lajos Portisch won).