Sir George William Chrystal KCB (28 August 1880 – 1 November 1944) was a British civil servant. Chrystal was the son of the mathematician George Chrystal and was born in Edinburgh. He was educated at George Watson's College, the University of Edinburgh, and Balliol College, Oxford, at which he took a second in Classical Moderations in 1902 and a second in Greats in 1904. He joined the Civil Service at the Admiralty in that year, but two years later transferred to the Home Office, serving successively as assistant private secretary to Home Secretary Reginald McKenna, secretary to the Parliamentary Under-Secretary of State, and principal secretary to Permanent Secretary Sir Edward Troup. He also served as joint secretary to the and the .