Luis Argentino Palau (September 11, 1896 – February 8, 1971) was an Argentine chess master.He played for Argentina in three Chess Olympiads.
In 1924 at 1st unofficial Chess Olympiad in Paris (+5 –4 =4);
In 1927 at 1st Chess Olympiad in London (+7 –4 =4);
In 1928 at 2nd Chess Olympiad in The Hague (+9 –5 =2).In 1921/22, he tied for 10-12th in Montevideo (Roberto Grau won).
In 1925, he won in Montevideo.
In 1928, he took 2nd, behind Grau, in Mar del Plata (1st it).
In 1934/35, he tied for 3rd-4th in Buenos Aires (Luis Piazzini won).Palau was awarded the International Master (IM) title in 1965.