William Ritchie Sorley (4 November 1855, Selkirk - 28 July 1935, Cambridge) was a Scottish philosopher. A Gifford Lecturer, he was one of the British Idealist school of thinkers, with interests in ethics.
William Ritchie Sorley, the son of Anna Ritchie and William Sorley, a Free Church of Scotland minister, was educated at Edinburgh University and Trinity College, Cambridge.[1] He was Knightbridge Professor of Philosophy in the University of Cambridge from 1909 until 1933.
He is now remembered for his A History of British Philosophy to 1900, with its idiosyncratic slant, as a retrospective view from the point of view of British Idealism. The poet Charles Sorley was his son.