Joseph Watson, 1st Baron Manton (10 February 1873 – 13 March 1922) was an English industrialist from Leeds, Yorkshire.
He was chairman of Joseph Watson & Sons Ltd, soap manufacturers of Leeds, and a director of the London and North-Western Railway, in the late 19th century the largest joint stock company in the world. He became in later life a pioneer of industrialised agriculture in England and a successful racehorse owner.[1] He was step-great-grandfather to David Cameron, former Prime Minister of the United Kingdom.[2]