Major-General William Brooke Purdon DSO OBE MC (28 November 1881 – 1 December 1950) was an Irish soldier, physician and medical administrator. Towards the end of his life he was a representative of the Northern Ireland Government in London and for four years was an Honorary Surgeon to the King. In his youth Purdon was a rugby footballer of some note, representing several Irish clubs and was selected to play international rugby for Ireland on three occasions in 1906.