Sean Martin (born in Weston-super-Mare, England, in 1966) is an Anglo-Irish writer and film director.
He has written popular books on the Knights Templar and the Cathars, and appeared on History Channel documentaries such as Decoding the Past: The Templar Code and in Channel 5's Secrets of the Cross: The Trial of the Knights Templar.
Martin studied film and history in Plymouth, and later lived in London.
His book The Gnostics: The First Christian Heretics, was on the early Christian Gnostics.
[1][dead link] He wrote a book on new wave cinema, published in 2013.