Lawrence Winslow Pleau (born January 29, 1947) is an American former ice hockey player who is currently the senior advisor to the general manager for the Arizona Coyotes of the National Hockey League (NHL). He formerly served as senior vice president and General Manager of the St. Louis Blues. He played in the NHL with the Montreal Canadiens between 1970 and 1972, and in the World Hockey Association with the New England Whalers between 1972 and 1979. Internationally Pleau played for the American national team at the 1968 Winter Olympics and the 1969 World Championship.