Mats Göran Hallin (born March 9, 1958 in Eskilstuna, Sweden) is a retired professional ice hockey player who played 152 games in the National Hockey League. He played with the New York Islanders and Minnesota North Stars. He would win one Stanley Cup with the Islanders in 1983. He played in various leagues in Sweden until 1981. The Washington Capitals chose him 105th overall in the 1978 NHL Amateur Draft but they lost his rights. The New York Islanders signed him as a free agent in 1981.