Chetaka, called King Chetaka or President Chetaka was the representative of the Licchavi clan who ruled as a Republican President in Vaishali (India) reputed to have organised the Vajjian confederation of republics comprising the 9 Mallakis, 18 Gana Rajas of Kashi/Kosala and 9 Licchavi Republics. He lived in the 5th century BC and was a contemporary of Buddha and Mahavira. His system of government appears to have been a republican committee which elected a ceremonial king to act upon the committee's advice.