Khallata Naga, also known as Kalunna, was an early monarch of Sri Lanka of the Anuradhapura Kingdom from 109 BC to 103 BC.

 

Khallata Naga was the youngest son of Saddha Tissa, and Youngest brother of Thulatthana and Lanja Tissa. In the period of his reign, three rebel Princesses, Tissa, Abha and Uttara tried to seize his throne.