Denys Kolchin (; born 13 October 1977) is a Ukrainian former professional footballer and current manager of Chornomorets-2 Odesa. He won bronze medal of the 1994 UEFA European Under-16 Championship as member of the Ukraine national under-17 football team.
He last played for FC Dnister Ovidiopol and later worked as a coach of another club in the Black Sea region Zhemchuzhyna Odesa.
In the summer of 2025 Kolchin headed the SeaSters. On 27 December 2025, he left the club.
On 16 January 2026, Kolchin was appointed as the manager of Chornomorets-2 Odesa. It is noted that the specialist will also become the club's deputy general director for youth and youth football development.