Jean-Marc Lanthier (born March 27, 1963 in Montreal, Quebec) is a retired professional ice hockey player who spent parts of four seasons in the National Hockey League for the Vancouver Canucks during the mid-1980s. In the summer of 1988, Lanthier signed as a free agent with the Boston Bruins. However, he spent only a few months in that organization before being dealt to the New Jersey Devils. He spent the final two seasons of his career with the Utica Devils, New Jersey's AHL farm team, before retiring in 1990.