Bhumij (also transliterated as Bhumuj, Bhumija) is a Munda ethnic group of India. They primarily live in the Indian states of West Bengal, Odisha, and Jharkhand, mostly in the old Singhbhum district. Also in states like Bihar and Assam. There is also a sizeable population found in Bangladesh. Bhumijas speak the Bhumij language, an Austroasiatic language, and use Ol Onal script for writing.
Bhumij means "one who is born from the soil" and it is derived from word bhūmi (a land or soil). According to N. Ramaswani, the word is etymologically Bhūm-jo meaning "people originating from Bhum areas, i.e. Singhbhum, Dhalbhum, Manbhum, Barabhum, etc.", Dalton also had claimed that Bhumijs were the original inhabitants of Dhalbhum, Barabhum, Patkum and Baghmundi.
Social structure of the Bhumijs is characterised by nuclear family, patriliny, exogamy and hereditary headship of the village community. They follow Hindu practices of succession and inheritance. The Bhumijs are divided into several geographical endogamous groups based on ancestral territory and occupation, such as Tamaliya, Na-gadi, Astha, Choto Astha in Jharkhand; Bara Bhuiya, Deshua, Haldi Pukhria, Tamadi Sikharia, Tharua in Odisha; Borabhui, Mura, Mura bhumij, Chaibasa mura, Khanga mura, Kumpat mura, Manki bhumij in Assam; Bara, Bhoogol, Bhuiya, Kada kata, Manki, Nag, Patkumia, Sing in Tripura. In Mayurbhanj, segmentary Bhumija group are Tamaria Bhumij (distinct from Tamudia, a Schedule Caste of Odisha), Haldipukuria Bhumij, Teli Bhumij, Desi or Dehuri Bhumij, Bada Bhumiyas and Kol Bhumij. In Purulia Tamaria Bhumij, Sikharbhumi Bhumij. Which are generally indicated their ancestral territory and profession. Each group forms an exogamous group of its own and do not intermarry. Each one of these groups consists of a number of exogamous sub-groups called "kili", the names of which are chosen from diverse sources representing fauna and flora, heavenly bodies, earth, etc.
A Bhumij refrains from injuring anything represented by the name of the group.