Sergey Kalugin (Russian: ?????? ???????; born April 9, 1967) is a Russian acoustic guitarist, singer-songwriter and poet, the leader of the Russian art/progressive rock band Orgia Pravednikov.
Kalugin's guitar mastery combines classical and rock guitar trends, his music covers such different genres as progressive rock, Baroque music, flamenco; his poetics deals with such themes as Hermeticism, Kabbalah, vampirism, Christian esoterism, Gnosticism, Buddhism etc., and also includes some satirical component.