Robert Martin Strachan (December 1, 1913 – July 21, 1981) was a trade unionist and politician. He was the longest serving Leader of the Opposition in British Columbia history. Born in Glasgow, Scotland, Strachan was a carpenter by trade. He immigrated to Canada after quitting a 10-shilling-a-week job as messenger boy in Glasgow to go to Nova Scotia on a $10-a-week farm labor scheme. He moved west, in 1931, to the northern B.C. copper-smelting town of Anyox and then to Powell River, where he became a carpenter and an active unionist eventually becoming British Columbia head of the .