Anga (Sanskrit: Aṅga) was an ancient Indo-Aryan tribe of eastern India whose existence is attested during the Iron Age. The members of the Aṅga tribe were called the Āṅgeyas.
Counted among the "sixteen great nations" in Buddhist texts like the Anguttara Nikaya, Aṅga also finds mention in the Jain Vyakhyaprajnapti's list of ancient janapadas.
Aṅga proper was located between the Champā river to the west and the Rajmahal hills to the east. However, at times, its territories did extend to the sea in the south, or included Magadha in the west.
The capital of Aṅga, named Campā, was located at the confluence of the Campā and Gaṅgā rivers, and corresponds to the modern-day villages of Campāpurī and Champanagar in the eastern part of the Indian state of Bihār. According to the Jātakas, Campā was also called Kāla-Campā, while Puranic texts claim its ancient name was Mālinī.
The other important cities within the Aṅga kingdom included Assapura (Sanskrit: Aśvapura) and Bhaddiya (Sanskrit: Bhadrika).
According to the Mahabharata (I.104.53-54) and Puranic literature, Aṅga was named after Prince Anga, the founder of the kingdom, and the son of Vali, who had no sons. So, he requested the sage, Dirghatamas, to bless him with sons. The sage is said to have begotten five sons through his wife, the queen Sudesna. The princes were named Aṅga, Vaṅga, Kaliṅga, Sumha and Pundra.
The Ramayana (1.23.14) narrates the origin of name Aṅga as the place where Kamadeva was burnt to death by Siva and where his body parts (aṅgas) are scattered.
Aṅga was first mentioned in the Atharvaveda, where it was connected to the Gāndhārīs, Mūjavats, and Māgadhīs. The founder of Aṅga might have been the king Aṅga Vairocana, who is mentioned in the Aitareya Brāhmaṇa as a ruler who had been consecrated by the Aryan ritual of Aindra mahābhiśeka.
Vedic literature such as the Baudhāyana Dharmasūtra nevertheless listed the Āṅgeyas with peoples described as being of "mixed origin."
Aṅga was a powerful kingdom at the time of the Aitareya Brāhmaṇa, which mentions the "world conquest" of one of the Āṅgeya kings.