Screeching Weasel is an American punk band from Chicago, Illinois. The band was formed in 1986 by Ben Weasel and John Jughead. The band gained prominence in the early 1990s after signing a record deal with the East Bay punk label, Lookout! Records. Since the band's formation, Weasel has been its only constant member, though Jughead was present in every incarnation of the band until 2009. The next most prominent members in the band have been Dan Vapid on guitar and bass and Dan Panic on drums. However, the band has been through many line-up changes and at times included such notable musicians as Mike Dirnt and Mass Giorgini.
Many subsequent popular punk bands have cited Screeching Weasel as influential, including Green Day, Blink-182, and Rise Against.