IllarionIllarion or Ilarion is a Russian first name, a transliteration of the Greek name "Ἱλαρίων". It is shared by the following individuals:Illarion Ivanov-Schitz, Russian/Soviet architectIllarion Mgeladze, Georgian Marxist revolutionary writerIllarion Pryanishnikov, Russian painterIllarion Vasilchikov, Imperial Russian generalCount Illarion Ivanovich Vorontsov-Dashkov, Russian politician