Illarion () or Ilarion () is a Russian first name, a transliteration of the Greek name "". It is shared by the following individuals:

Illarion Ivanov-Schitz (1865–1937), Russian/Soviet architect Illarion Mgeladze (1890–1941, a.k.a. Ilya Vardin), Georgian Marxist revolutionary writer Illarion Pryanishnikov (1840–1894), Russian painter Illarion Vasilchikov (1805–1862), Imperial Russian general Count Illarion Ivanovich Vorontsov-Dashkov (1837–1916), Russian politician

See also

Ilarion (name) Hilario (name) Hilarion (name) Hilary (name) Larion