Roman Vasyliovych Kostenko is a Ukrainian military commander and politician currently serving as a People's Deputy of Ukraine from the Holos party list since 29 August 2019. A member of the Cyborgs, Kostenko fought at the Second Battle of Donetsk Airport during the war in Donbas, for which he was awarded the Order of Bohdan Khmelnytsky, as well as the 2022 Russian invasion of Ukraine. He is a secretary of the Parliamentary Committee on National Security, Defense, and Intelligence. His military call sign is "Thunder".

A military counteroffensive was launched by Ukraine on 29 August 2022 to expel Russian forces occupying the southern regions of Kherson and Mykolaiv oblasts.