Ilarion

Ilarion (Иларион, Иларион, Иларион, Іларіон) is a variant of the Greek given name Hilarion, found in Slavic and Romanian languages. It may refer to:


 * Hilarion of Kiev or Ilarion (11th century), Metropolitan of Kiev
 * Ilarion Buiuc (1891–1918), Bessarabian politician
 * Ilarion Roganović (1828–1882), Bishop of Cetinje and Metropolitan of Montenegro and the Highlands
 * Ilarion Ciobanu (1931–2008), Romanian actor
 * Ilarion Felea (1903–1961), Romanian Orthodox priest and theologian
 * Ilarion Ionescu-Galați (born 1937), Romanian violinist and orchestra conductor
 * Hilarion of Makariopolis or Ilarion (1812–1875), Bulgarian cleric
 * Ilarion Ruvarac (1832–1905), Serbian historian and Orthodox priest
 * Ilarion Ohienko, Metropolitan Ilarion (1882–1972), Ukrainian Orthodox cleric, linguist, and historian
 * Ilarion Dragostinov (1852–1876), Bulgarian revolutionary
 * Ilarion Hrabovych (1856–1903), Ukrainian poet
 * Ilarion Radonić (1871–1932), Bishop of the Serbian Orthodox Church