Batak – Toba and Taro people. also referred to as Batak Toba people or just Bataks.
These are ethnic groups predominantly found in North Sumatra, Indonesia. The term is used to include the Alas, Kluet, Singkil, Karo, Pakpak, Simalungun, Toba, Angkola, and Mandailing which are distinct but related groups with distinct, albeit related, languages and customs (adat).
Also among Batak people is well-documented ritual cannibalism, performed in order to strengthen the eater.