Kirill or Cyril (Russian: Кирилл, Church Slavonic: Стѣ́йшїй патрїа́рхъ Кѷрі́ллъ, secular name Vladimir Mikhailovich Gundyayev, Russian: Влади́мир Миха́йлович Гундя́ев; born 20 November 1946) is a Russian Orthodox bishop. He became Patriarch of Moscow and all Rus' and Primate of the Russian Orthodox Church on 1 February 2009.
Prior to becoming Patriarch, Kirill was Archbishop (later Metropolitan) of Smolensk and Kaliningrad, and also Chairman of the Russian Orthodox Church's Department for External Church Relations. He has been a permanent member of the Holy Synod since 1989.