William Flavelle Monypenny (7 August 1866 – 23 November 1912) was an Irish-born journalist and editor whose career was split between London and South Africa.
Monypenny was the second son of an Ulster family of Scottish descent, born in Ballyworkan, south of Portadown, County Armagh, to William Monypeny, linen manufacturer and small landowner, and Mary Ann Flavell.
Monypenny was at the forefront in the subsequent political disputes leading up to the Second Boer War, and was forced to flee to Cape Colony prior to the outbreak of hostilities when a warrant of high treason was taken out against him.
Monypenny subsequently served in Lord Milner's administration, where he was the director of civil supplies and participated in the rehabilitation of refugees after the annexation of the Transvaal.
Though Monypenny's relative obscurity led some to question his selection, the first volume was critically praised upon his publication in October 1910.