Eugene Znosko-Borovsky (Yevgeny Alexandrovich Znosko-Borovsky; 16 August 1884 – 31 December 1954) was a Russian chess player, music and drama critic, teacher and author. Born in Pavlovsk, Saint Petersburg Governorate, he settled in Paris in 1920, and lived there for the rest of his life.
Znosko-Borovsky learned to play chess as a young boy. He won prizes in local and regional tournaments, whilst progressing to a first-class education at the Tsarskoye Selo Lyceum.
Making his international chess tournament debut at Ostend in 1906, where he won the brilliancy prize for his game against Amos Burn, Znosko-Borovsky's playing career was frequently interrupted by other events in his life. Between 1909 and 1912 he was a prominent critic of the Modernist Apollo magazine, befriended many Russian poets and writers of the Silver Age, and was Nikolay Gumilev's second in his 1909 duel against Maximilian Voloshin. Decorated and wounded in military conflicts, he first served as a volunteer in the Russo-Japanese War of 1904 and 1905 and was again called into service during World War I. Following evacuation, he was taken by a British ship to Constantinople and from there proceeded to Paris, which remained his home from 1920 onwards.
As a player, Znosko-Borovsky fell short of the very highest level. He did have some notable results in international competition, including Paris 1930, where he finished first without loss, ahead of Savielly Tartakower, Andor Lilienthal and Jacques Mieses, and first prize in the premier tournament at Folkestone 1933. Success often came in individual encounters with his more distinguished peers; he won impressive games against José Raúl Capablanca, Akiba Rubinstein, Max Euwe and Efim Bogoljubov as well as a short match with Edgard Colle in 1922. He was also highly skilled at simultaneous exhibition play.
In conversation and as a lecturer, teacher or writer of chess, his abilities were widely acknowledged, particularly in Russia and France where he contributed regular articles and columns to magazines and newspapers.