Mykola Serhiyovych Kravchenko (pseudonym "Kruk", 1983–2022) is a Ukrainian historian, public and political figure, candidate of historical sciences, ideologist of the Azov movement, one of the founders of the NGO "Patriot of Ukraine", veteran of the "Azov" regiment, deputy chairman of the "National Corps" party. He took an active part in the Revolution of Dignity, organized resistance to pro-Russian forces in Kharkiv, and was involved in organizing the territorial defense of Kyiv during the full-scale invasion of the Russian Federation.
Kravchenko was the author and editor of a number of works on the history of Ukrainian nationalism, including: "Ideological Succession", "Ukrainian Argonautics", "Kruka's Guide", "Black Wedge", "Base of Nationalism" and others. He was also a co-founder of the publishing house "Orientyr" and director of the NGO "Institute of National Development". He died on March 14, 2022 during the defense of Kyiv.
