Charles Beverley (Bev) Koester, (January 13, 1926 – February 1, 1998) was a Canadian naval officer, civil servant and Clerk of the Canadian House of Commons. Born in Regina, Saskatchewan, he graduated from the Royal Canadian Naval College at Royal Roads, British Columbia in 1944. He served during the Second World War in Scotland, and in 1945 was involved in the liberation of Oslo and Copenhagen. He stayed in the Navy until 1960, retiring as a Lieutenant Commander. He attended the University of Saskatchewan and the University of Alberta and taught history at the University of Regina, later becoming head of the history department. He was the author of Footprints in Time – Saskatchewan (House of Grant, Canada, 1965); Mr. Davin MP (Western Producer Prairie Books, 1980); The Measure of the Man