Joanna Maria Lindgren (born 5 November 1969[citation needed]) 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.
[4] Following the resignation of LNP senator Brett Mason in April 2015, Lindgren was one of nine candidates to contest the casual vacancy, with her chief opponent being Bill Glasson, a former president of the Australian Medical Association.
Lindgren joined Cory Bernardi's Australian Conservatives in 2018 and ran on the party's Queensland Senate ticket at the 2019 federal election.
[10] Lindgren's husband Peter Anderson-Barr is a policeman, and was briefly an LNP candidate for the seat of Logan at the 2012 state election, but withdrew before the close of nominations.