Oleksandr Dyachenko (Ukrainian: ????????? ?????????? ???????; born 1 March 1994 in Kiev, Ukraine) is a retired Ukrainian football goalkeeper, who last played for Ukrainian club FC Rukh Vynnyky in the Ukrainian First League.
Dyachenko is product of youth team systems of FC Dynamo and FC Metalist.
Made his debut for FC Obolon-Brovar Kyiv entering as a player in game against FC Real Pharma Ovidiopol on 6 September 2013 in Ukrainian Second League.On November 2013, Dyachenko was called up for Ukrainian national football team under-20 by coach Volodymyr Horilyi for training process .He retired at age 24 after the latest injury when he broke his leg.