Ignatius Brianchaninov or Ignaty Brianchaninov was a bishop and theologian of the Russian Orthodox Church. He stands out as one of the greatest Eastern Orthodox patristic writers of the nineteenth century.
He was glorified as a saint by the 1988 meeting of the Local Council of the Russian Orthodox Church. His relics are preserved at the ancient Tolga Monastery on the Volga River near Yaroslavl.