- For the British Assyriologist, see Stephen Herbert Langdon.
Steven W. Langdon (born July 15, 1946) is a Canadian academic, politician, economist, and former parliamentarian.
Born in Stratford, Ontario, Langdon graduated from the University of Trinity College in the University of Toronto in 1969. He was a candidate for the New Democratic Party on four occasions before being elected to the House of Commons from Essex in the 1984 election.
He lost his seat in the 1993 election.