Brian Douglas Austin AKA Brian Austin(born 22 March 1943) is an Australian politician and Minister of Health (1980–1983) who represented the state seat of Wavell for the Liberal Party (1977–1983) and then for the National Party (1983–1986).
Austin switched to the National Party (along with Don Lane, who was the Minister for Main Roads) in 1983 after Premier Joh Bjelke-Petersen lobbied several Liberals to cross the floor, thus enabling the National Party to form government with a very slim majority, as prior to the swap the Nationals were one seat short of governing in their own right. At the 1986 Queensland state election, Austin became the first MP for the new Queensland electorate of Nicklin (1986–1989).
In 1987, Austin was one of three ministers who told Governor Walter Campbell that Petersen no longer had enough support to govern. This was a key event in the caucus coup that saw Bjelke-Petersen deposed as premier later that year.