Dyachenko is a Ukrainian surname. Notable people with the surname include:
Alexsandr Dyachenko, Kazakh cyclist for Astana Team
Alexander Dyachenko, Russian sprint canoer
Alexandr Dyachenko, Kazakh beach volleyball player
Igor Dyachenko, Ukrainian karateka
Maryna Dyachenko, Ukrainian sci-fi writer
Petro Dyachenko, Ukrainian military commander
Rod Dyachenko, Russian soccer player
Serhiy Dyachenko (writer), Ukrainian sci-fi writer
Tatyana Dyachenko, daughter of Boris Yeltsin
