Würm was a sludge metal band started in 1973 by bass player Chuck Dukowski, who would later join Black Flag.

Without Würm, the genres of punk rock and hardcore would never have been the same. The band's practice space, the Würmhole - a hangout for musicians in Hermosa Beach during the mid-late 70's - is where Keith Morris and Greg Ginn met Dukowski and ultimately formed the original Black Flag line-up.

The band's only album, Feast, was released in 1985 after the band's demise.