Yakov Krotov (born 31 May 1957) is a Russian author and historian.
From 1977 to 1989, he worked as a librarian and archivist. From 1990 he is a freelanced author. He writes about history, Christianity, promotes values of tolerance, religious liberty and peace-making. He published five books in Russian.
He has been lecturing in the United States on the Russian Orthodoxy as a Bradley Visiting Scholar in 1994.
He is married and has two sons.