Kost Hordiienko (Ukrainian: Кость Гордієнко; unknown – 15 May 1733) was a Zaporozhian Cossack Kish otaman.

In favor of the first option, the fact that it was customary to attach the surname to the father's name was in Left-bank Ukraine, but not in Volhynia.

The refusal to swear allegiance to Peter I and the attempt together with the Crimean Khan Devlet II Giray to act against Moscow were motivated by the same.

However, the Ottoman grand vizier Amcazade Köprülü Hüseyin Pasha did not approve of these plans, contributing to the overthrow of the Khan from the throne.

Peter I sent his henchmen to Ukraine to persuade the Cossacks to depose Hordiienko, and in 1703 Herasym Krysa [uk] was elected instead.

After the Battle of Poltava, the Russians intended to arrest him again, but, not being able to do so, they dug up and beheaded the corpse, after which it was hanged on a tree.