Thomas Warren "Swede" Knox[1] (March 2, 1948 – March 22, 2021) was a National Hockey League (NHL) linesman.[2] He officiated over 2,248 NHL games, starting in 1972, and wore a helmet from the mid-1980s until his retirement in 2000. He also officiated five Stanley Cup Finals, the 1987 Canada Cup and one NHL All-Star Game.