Sergei Aleksandrovich Nilus (also Sergiei, Sergyei, Sergius, Serge; Russian: ?????´? ??????´??????? ??´???; 9 September [O.S.
28 August] 1862 in Moscow - 14 January 1929, Krutets village, Vladimir Oblast, USSR) was a Russian religious writer and self-described mystic.
He was responsible for publishing for the first time "in full" The Protocols of the Elders of Zion in Russia in 1905.
It appeared as the final chapter of his book Velikoe v malom i antikhrist, kak blizkaja politicheskaja vozmozhnost.
Zapiski pravoslavnogo (The Great within the Small and Antichrist, an Imminent Political Possibility.
Notes of an Orthodox Believer), about the coming of the Antichrist.
An allegedly abridged version had been published in 1903 in the newspaper Znamya.