Joanna Maria Lindgren (born 5 November 1969) is an Australian politician who served as a Senator for Queensland from May 2015 to July 2016. Lindgren was appointed to the Senate on the nomination of the Liberal National Party of Queensland to fill the casual vacancy caused by Brett Mason's resignation. She sat with the Liberal Party in federal parliament until her defeat at the 2016 federal election. She was the second Indigenous Australian woman to serve in the Senate, after Nova Peris. Lindgren joined the Australian Conservatives in 2018 and was an unsuccessful candidate for the Senate at the 2019 federal election.