Leon Kremer (1901–1941) was a Polish chess master.
He played several times in the Warsaw championships, and won in 1929.
[1] He twice represented Warsaw in the Polish team championships at Królewska Huta 1929 and Katowice 1934.
[2] He played four times in the Polish championships; took 11th at Warsaw 1926 (Dawid Przepiórka won), took 9th at Lodz 1927 (Akiba Rubinstein won), tied for 12-14th at Warsaw 1935 (Savielly Tartakower won), and tied for 14-16th at Jurata 1937 (Tartakower won).
[3] Kremer played for Poland at sixth board (+14 –4 =2) in 3rd unofficial Chess Olympiad at Munich 1936, and won two silver medals (team and individual).