Jacob Bernstein (February 24, 1885 – December 21, 1959) was an American chess master.
Born into a Jewish family in Kaunas, Lithuania,[1] he lived in New York. He won three consecutive New York State Chess Championships (1920–1922),[2] and shared 1st with Herman Steiner in 1929, but lost a tiebreak to him.[3]
He also tied for 8–9th at New York 1913 (Rice tournament, José Raúl Capablanca won),[4]
tied for 5–6th at New York 1915 (Capablanca won),[5] tied for 7–8th at New York 1916 (Rice tournament, Capablanca won),[6]
and lost a match to Abraham Kupchik (1.5 : 3.5) at New York 1916.[7]