Liane Marianne Tooth, OAM (born 13 March 1962 in Sydney, New South Wales) is a retired field hockey forward, who twice won the gold medal with the Australian Women’s Hockey Team, best known as the Hockeyroos, at the Summer Olympics: in Seoul (1988) and in Atlanta, Georgia (1996). She was inducted into the Sport Australia Hall of Fame in 1996. She was one of the eight flag-bearers of the Olympic Flag at the opening ceremony of the2000 Summer Olympics in Sydney, New South Wales, Australia.