Headhunting is the practice of taking and preserving a person's head after killing the person. Headhunting was practised in historic times in parts of Oceania, South and Southeast Asia, West and Central Africa, and Mesoamerica, as well as among certain tribes of the Celts, the West Germanic tribes, and Scythians of ancient Europe. It occurred in Europe to the end of the Middle Ages in Ireland and the Anglo-Scottish border regions, and until the 19th century in Montenegro, Croatia, Albania and western parts of Herzegovina.
The headhunting practice has been the subject of intense study within the anthropological community, where scholars try to assess and interpret its social roles, functions, and motivations. Anthropological writings explore themes in headhunting that include mortification of the rival, ritual violence, cosmological balance, the display of manhood, cannibalism, prestige by taking on a rival's spirit and power, and as a means of securing the services of the victim as a slave in the afterlife.
Today's scholars generally agree that headhunting's primary function was ritual and ceremonial. It was part of the process of structuring, reinforcing, and defending hierarchical relationships between communities and individuals. Some experts theorize that the practice stemmed from the belief that the head contained "soul matter" or life force, which could be harnessed through its capture.