Pig slaughter is the work of slaughtering domestic pigs which is both a common economic activity as well as a traditional feast in some European countries.

Pig slaughter is a necessary activity to obtain pig meat - pork. It regularly happens as part of traditional and intensive pig farming.

Pigs are slaughtered at different ages. Generally they can be divided into piglets, which are 1.5 to 3 months old; the fattening pigs, intended for pork and bacon, which are 4 months to one year old; and finally the older pigs, such as sows (female pigs) and boars (uncastrated male pigs). The meat obtained from piglets is subdivided into more meaty or more fatty, determined by the thickness of bacon. Male hogs are usually castrated a month before slaughter. Their meat quality is determined on the mass of halves and the thickness of bacon on the back.

Transport of pigs to slaughter and all the other procedures and circumstances leading up to the actual act of stunning and killing the pig are in modern times carefully arranged in order to avoid excessive suffering of animals, which both has a humane rationale as well as helping provide for a higher quality of meat.