Yehor Vasylyovych Demchenko (; born 25 July 1997) is a Ukrainian professional footballer who plays as a midfielder for Epitsentr Kamianets-Podilskyi.
Demchenko is a product of FC Metalurh Zaporizhzhia youth team system. His first trainer was Mykola Syenovalov.
He made his debut for Metalurh Zaporizhzhia in the Ukrainian Premier League in a match against FC Hoverla Uzhhorod on 8 August 2015.
In August 2016, he spent 2 weeks training with Japanese club Júbilo Iwata, but he wasn't signed. After his return from Japan, he trained with Olimpik Donetsk and signed contract with the club on 1 December 2016.