Justine Terri Keay (born 18 March 1975) is a former Australian politician. She was the Labor member for Braddon in the House of Representatives, serving from the 2016 federal election held on 2 July 2016 until her resignation on 10 May 2018 as a part of the 2017–18 Australian parliamentary eligibility crisis and then since the 2018 Braddon by-election. She replaced the Liberal Party's Brett Whiteley.