Sir (Collingwood) George Clements Hamilton, 1st Baronet (1 November 1877 – 12 January 1947) was an English electrical engineer and Conservative Party politician.
Born in Northumberland, he was the son of a prominent Church of England cleric, the Venerable George Hans Hamilton, Archdeacon of Lindisfarne then Northumberland, Canon of Durham and his wife Lady Louisa Hamilton.
Following education at Aysgarth School and Charterhouse School, he was apprenticed to the firm of Scott & Mountain Ltd, a Newcastle-based electrical and general engineering company. He represented the company in various countries including India, Bulgaria, Greece, Russia and Egypt. He subsequently became the managing director of the Manchester branch of Drake & Gorham, electrical engineers.
He married Eleanor Simon of Didsbury in 1906, and they had one son and one daughter.
During World War I he was commissioned as an officer in the Queen's Westminster Rifles, the 16th Battalion of the London Regiment, rising to the rank of major. In October 1916 he was transferred to the General List. He was appointed Director of Enrolment National Service in 1917 and Controller of Contract Claims at the Ministry of Munitions in 1918.
In 1913 he won a by-election and was elected to the Commons as Conservative Member of Parliament (MP) for Altrincham. He served as Parliamentary Private Secretary to the Minister of Pensions from 1919–20. He held the seat until 1923. He returned to parliament at another by-election at Ilford in 1928. He resigned from the House of Commons in 1937.