Aus-Rotten was a crust/hardcore punk crossover group which formed in the early 1990s in Pittsburgh, Pennsylvania. They combined the direct action attitude of early 1980s anarcho-punk with a new, heavier sound. Many of their songs dealt with the government, capitalism, sexism, capital punishment, religion, animal rights and other controversial topics.

Havoc Records states that the band's 1994 "Fuck Nazi Sympathy" 7" remains the label's "best selling record to date with over 20,000 copies pressed."

They have also have boasted having one of the longest Crust songs ever, being nearly 16 minutes in length.

The band is perhaps most famous not for its musical originality, but more for its radical, sharp, and quotable lyrics (e.g. "People are not expendable, government is" and "As long as flags fly above us, no one's really free"), as well as for their strong anti-fascist stance, which, according to the interview on the ABC No Rio documentary, got them threatened at least once.

Aus-Rotten went on a hiatus in the mid 90s and during that time Dave formed Human Investment with Andy of Anti-Flag and Corey and Eric formed Doomsday Parade. Aus-Rotten broke up for good in early 2001 and members have gone on to form Caustic Christ and Behind Enemy