Beasts of Bourbon were an Australian rock 'n' roll band from Sydney, New South Wales that formed in 1983, with a line-up that has changed as the band splintered and reformed several times. Although they received limited commercial success, they are widely influential and critically acclaimed. They helped define Australian Swamp rock and are something of a supergroup, featuring line-ups of some of the most popular musicians of that sub-genre over many years.