Biffa Bacon is a cartoon character in the British comic magazine VIZ. Biffa and his family—Mutha and Fatha—hail from the Tyneside region of North East England and speak in the Geordie dialect. They and occupy a surreal world entirely governed by physical violence. Biffa appears to be a visual parody of the character Bully Beef from The Dandy. The characters were alledgedly inspired by a real family observed by Viz contributor James Donald in Newcastle-Upon-Tyne city centre where the son began an unprovoked assault on another boy the parents rather than intervene began shouting encouragement to their child. As soon as it appeared the victim of the assault was able to defend himself the father joined in the attack that only ceased when police officers intervened.

Generally speaking, the plot of a strip includes a flimsy pretext for Biffa to be violently attacked, and then, just when a reconciliation is in order, the reconciliation emerges as just another flimsy pretext for a violent attack. Often the violence is surreal or impossible – Mutha Bacon's foot flying out of a small handbag to kick Biffa in the teeth, after which she somehow climbs out of the handbag.

Biffa and his parents invariably band together to assault against any outsiders who appear in the strip and, as with all Viz cartoons, a lot of the humour comes from putting the characters against the setting of "ordinary" people.