Arcwelder is an American punk band which formed in Minneapolis, Minnesota in 1988. The band, a perennial local favorite, consists of brothers Rob and Bill Graber and Scott Macdonald, all of whom share in the tasks of songwriting and singing.

Under their original name Tilt-A-Whirl, the band released their first album This in 1990 on the small Minneapolis label Big Money, Inc. As the record was being released, the band was sued for trademark infringement by Sellner Manufacturing, the manufacturer of the Tilt-A-Whirl amusement ride. Rather than go to court, the band changed their name to Arcwelder, the title of an instrumental on the record. The initial release of This had a disclaimer sticker noting the lack of affiliation between the ride's manufacturer and the band.