Joni Lius (born March 4, 1971 in Finland) is a former professional Finnish ice hockey player. Lius began his career with JYP and stayed with the team for seven seasons. He played for Frölunda HC in the Elitserien for two seasons and the Vienna Capitals in the Austrian Ice Hockey Association for one year. However, Lius played the majority of his career with TPS Turku in the SM-liiga.