Metropolitan Cornelius Jakobs ( or secular name Vjatšeslav Vassiljevitš Jakobs, or Vyacheslav Vasilyevich Yakobs, ; 19 June 1924 – 19 April 2018) was the Metropolitan bishop of Tallinn and All Estonia, the head of the Estonian Orthodox Church of Moscow Patriarchate from 1992 until his death in 2018. He was born in Tallinn. He became the oldest bishop of the Russian Orthodox Church and celebrated his 90th birthday in 2014.