Black pudding is a distinct regional type of blood sausage originating in the United Kingdom and Ireland. It is made from pork or occasionally beef blood, with pork fat or beef suet, and a cereal, usually oatmeal, oat groats, or barley groats. The high proportion of cereal, along with the use of certain herbs such as pennyroyal, serves to distinguish black pudding from blood sausages eaten in other parts of the world.

A blood sausage is a sausage filled with blood that is cooked or dried and mixed with a filler until it is thick enough to solidify when cooled. Most commonly, the blood of pigs, sheep, lamb, cow, chicken, or goose is used.