Brian John MacLellan (born October 27, 1958) is a Canadian former ice hockey forward and the general manager of the Washington Capitals. He played in the National Hockey League with five teams between 1983 and 1992, winning the Stanley Cup in 1989 with the Calgary Flames. Internationally he played for the Canadian national team at the 1985 World Championships. He joined Washington front office in 2000 and spent 13 seasons in various roles before becoming general manager in 2014, and in 2018 won the Stanley Cup with the team.