Serafimo-Diveevsky Monastery, or Saint Seraphim-Diveyevo Monastery, or Holy Trinity-Saint Seraphim-Diveyevo Monastery is a monastery of nuns (convent) near Sarov (12 km), and near the city of Nizhny Novgorod (185 km), in the Nizhny Novgorod Oblast, Russia.
The convent is famous because Saint Seraphim of Sarov served as Staretz (Elder) for the nuns of this monastery, though he only travelled to the convent once during his lifetime. He was a monk at the nearby monastery of Sarov. After the fall of communism, his relics, which had been feared lost, were discovered in the storeroom of a "museum of atheism" in Saint Petersburg and solemnly transferred to the Seraphim-Diveyevo monastery, which has come to be named after him.
The monastery is also famous for possessing the only portrait of Saint Seraphim that was painted of him by a contemporary, the "Diveyevo Portrait". During the years of Communist persecution, the portrait was smuggled out of Russia and is kept to this day in the Novo-Diveyevo Convent in Nanuet, New York.
The convent is a subject of the writings of Serge Nilus in his semi-autobiographical work Velikoe v malom i antikhrist, a work which has the dubious distinction of having been published, in book form, for the first time as the Protocols of the Elders of Zion (which is only its last chapter, Chapter XII).