Sir Charles Prestwood Lucas KCB KCMG (7 August 1853 – 7 May 1931) was a British civil servant and historian.
Lucas was born at Crickhowell, Brecknockshire, Wales, the youngest son in a large family.
His sister Mary Anne Lucas married the first Sir Joseph Bailey, later Lord Glanusk.
He became a civil servant in the Colonial Office which led to his becoming head of the Dominion Department and, in 1907, to his knighthood.
He wrote A Historical Geography Of The British Colonies (1908),[6] A History of Canada: 1763–1812 (1909); Greater Rome and Greater Britain (1912);[7] The Canadian War of 1812 (1912);[8] and The Partition & Colonization of Africa (Clarendon Press 1922).