Stephen Murray Langdon (born December 23, 1953) is a Canadian former professional ice hockey left winger. He was drafted in the fourth round, 63rd overall, of the 1973 NHL Amateur Draft by the Boston Bruins. He played seven regular-season National Hockey League games with the Bruins, recording one assist. He also appeared in four games with the Bruins during the 1976 NHL playoffs, going scoreless.