Roman Igorevich Kosyanchuk (; born 24 October 1993) is a Russian football midfielder.
He made his debut in the Russian Second Division for FC Rubin-2 Kazan on 25 April 2011 in a game against FC Zenit-Izhevsk Izhevsk.
He made his Russian Football National League debut for FC Neftekhimik Nizhnekamsk on 13 October 2013 in a game against FC Khimik Dzerzhinsk.