George Hamilton Pettit (10 August 1872 – 5 June 1953) was a Canadian politician and barrister. Pettit served as a Conservative member of the House of Commons of Canada. He was born in Richmond, Ontario. Pettit attended public and secondary schools at Cornwall, Ontario. He then studied at Osgoode Hall Law School where he graduated in 1894. He became president of the Welland County Telephone Company. From May to October 1913, he was a deputy and acting court judge at Welland County.