George Gall Sim CSI CIE (17 January 1878 – 20 August 1930) was a British administrator in India and later a businessman. Sim was born in Strichen, Aberdeenshire, Scotland, and was educated at the University of Aberdeen and Christ Church, Oxford. He joined the Indian Civil Service in 1900 and went out to India at the end of 1901, where he was posted to the United Provinces, serving as an Assistant Magistrate and Collector. In April 1923, Sim was appointed Financial Commissioner of the (which became the Indian Railway Board in October 1924), which was going through huge financial reorganisation.