Lawrence Marshall Johnston (born June 6, 1941) is a Canadian former professional ice hockey player, coach and executive. He played as a right winger for the Minnesota North Stars and California Golden Seals of the National Hockey League (NHL). He has also coached in the NHL for the California Golden Seals, Colorado Rockies, and served as general manager of the Ottawa Senators. He was inducted into the International Ice Hockey Federation Hall of Fame in 1998.