Yuri Stepanovich Dyadyuk (; born 13 March 1970) is a Russian professional football coach and a former player. He works as an analyst for the Under-21 squad of FC Rostov.
He made his professional debut in the Soviet Second League in 1987 for FC Torpedo Taganrog. He played 5 games and scored 1 goal in the UEFA Intertoto Cup 1999 for FC Rostselmash Rostov-on-Don.