Ralph Ferguson, PC (September 13, 1929 – August 30, 2020) was a Canadian farmer and politician. Ferguson was a farmer in south-western Ontario, and co-founder of the Lambton Pork Producers Association. In the late 1950s, he was chairman of the Lambton County Egg Producers. He was first elected to the House of Commons of Canada in the 1980 federal election as the Liberal Member of Parliament (MP) for Lambton--Middlesex. Ferguson's cabinet career was short-lived, however, as both he and the Turner government were defeated in the September 1984 federal election.