Dunamis Lui (born 16 February 1990) is an Australian professional rugby league footballer who currently plays for the St. George Illawarra Dragons in the National Rugby League. A Samoan international representative, he plays at lock, prop and second-row and previously played for the Brisbane Broncos and Manly Warringah Sea Eagles.
Born in Brisbane, Queensland, Lui is of Samoan descent. Lui played his junior football for the Aspley Devils and Brisbane Brothers before being signed by the Brisbane Broncos. Lui played for the Broncos NYC team from 2008 to 2010. Lui has played for the Queensland Schoolboys team. Lui has played for the AIS team.
In Round 5 of the 2010 NRL season, Lui made his NRL debut for the Brisbane Broncos against the St. George Illawarra Dragons off the interchange bench in the Broncos 34-16 loss at WIN Stadium. In Round 6 against the Cronulla-Sutherland Sharks, Lui scored his first NRL career try in the Broncos 44-16 win at Suncorp Stadium. Lui finished his debut year in the NRL with him playing in 4 matches and scoring a try for the Brisbane Broncos.