Stefan Izbinsky
Stefan Konstantinovich Izbinsky was a Ukrainian chess master.
He tied for 9-10th in the Kiev 1903 chess tournament, tied for 8-10th at St. Petersburg 1905/06, took 13th at St. Petersburg 1909, shared 3rd with Paul List at Odessa 1910, shared 1st with Efim Bogoljubow and lost a play-off match against him at Kiev 1911, and took 2nd, behind Fedor Bogatyrchuk, at Kiev 1911.