Major General William Bethune Lindsay CB CMG DSO (3 November 1880 – 27 June 1933) was a Canadian military officer during World War I. Lindsay was born on 3 November 1880, the son of Dr. W, B. Lindsay, of Strathroy, Ontario, Canada. Lindsay was educated at Strathroy District Collegiate Institute and later enrolled at the Royal Military College of Canada. In 1900, he was appointed assistant engineer of the Department of Marine and Fisheries. Lindsay was one of the original officers of the Corps of Royal Canadian Engineers. During the First World War, he served as Chief Engineer of the Canadian Corps. He died at Toronto Hunt Club on 27 June 1933 and is buried at Strathroy Municipal Cemetery.