Thomas Graves Law was an English Anglican priest and scholar. Born in 1836, he was educated at Oriel College, Oxford. He served as a curate in several parishes before converting to Roman Catholicism in 1871. Following his conversion, he joined the Congregation of the Oratory in London, but left it in 1878. He was a prolific writer and historian, known for his works on ecclesiastical history and Scottish studies. His most notable works include "The Conflicts of the Church and State in Scotland" and the editing of several historical texts for the Scottish History Society, of which he was one of the founders. He died in 1904.