Maddison Gae Elliott, (born 3 November 1998) is an Australian swimmer.
At the 2012 Summer Paralympics in London, she became the youngest Australian Paralympic medallist by winning bronze medals in the women's 400 m and 100 m freestyle S8 events.
She then became the youngest Australian gold medallist when she was a member of the women's 4 × 100 m freestyle relay 34 points team.
At the 2016 Rio Paralympics, she won three gold and two silver medals.