The Licchavis were the most famous clan amongst the ruling confederate clans of the Vajji mahajanapada of ancient India. Vaishali (a city in modern day northern Bihar) the capital and homeland of the Licchavis, was the capital of the Vajji mahajanapada also. It was later occupied by Ajatashatru, who annexed the Vajji territory into his kingdom.
Kautilya in his Arthaśāstra (ch. XI), describes the Licchavis as a tribal confederation (gaṇa sangha), whose leader uses the title of rājā (rājaśabdopajīvinah). A Buddhist text, the Mahāparinibbāna Suttanta refers them as Kshatriyas and one of the claimants of the relics of Buddha. They have claimed Kshatriya status themselves. According to the Dīgha Nikāya, the Licchavis were of the Vasiṣṭha gotra. Buhler assumes that, in the Manusmriti (X.22), the Licchavis are placed in the category of the Vratya Kshatriyas.
Buddhaghośa in his Paramatthajotikā, traced the origin of the Licchavis to Benaras. The date of the establishment of the Licchavi domination over the area consisting of present-day north Bihar and terai region of Nepal is not known. By the time of Mahavira and Gautama Buddha this clan was already well settled in the area around their capital Vaiśālī. Buddhist tradition has preserved the names of a number of eminent Licchavis, which include prince Abhyaya, Oṭṭhaddha (Mahāli), generals, Sīha and Ajita, Dummukha and Sunakkhata. The Kalpasūtra of Bhadravāhu refers to the nine Licchavi gaṇarājas (chieftains) who along with the nine Malla gaṇarājas and the eighteen Kāśī-Kośala gaṇarājas formed a league against Magadha. The leader of this alliance was Chetaka, whose sister Trishala was the mother of Mahavira.