Boss Hog is an American punk blues band including the husband and wife duo of Jon Spencer (guitar) and Cristina Martinez (vocals) along with Jens Jurgensen (bass), Hollis Queens (drums) and Mark Boyce (keyboard). Their name derives from a slang term amongst bikers for a desirable ("boss") motorcycle ("hog").

The band achieved some notoriety, not only due to their abrasive sound, but more to Martinez's confrontational use of full nudity on the band's debut live performance and record sleeves. Their releases were relatively sporadic, but comprised three full length albums, a mini-album, an EP and a number of singles in an 11 year history. Recently (2009) the band has toured again.