The Dipavamsa, or "Deepavamsa", (i.e., Chronicle of the Island, in Pali: Dīpavaṃsa) is the oldest historical record of Sri Lanka. It means Chronicle of the Island. The chronicle is believe to be compiled from Atthakatha and other sources around the 3-4th century. Together with Mahavamsa, it is the source of many accounts of ancient history of Sri Lanka and India. Its importance resides not only as a source of history and legend, but also as an important early work in Buddhist and Pali literature.

The work has been translated into English by B. C. Law. It is probably authored by several Buddhist monks of the Mahavihara tradition of Anuradhapura in the 3rd-4th century. The preamble begins with "Listen ! I shall relate the chronicle of the Buddha's visits to the island, the arrival of the Tooth Relic and the Bodhi tree, the advent of the Buddha's doctrine, the rise of the teachers, the spread of Buddhism in the island and the coming of Vijaya the Chief of Men".King Dhatusena (4th century) had orderd that the Dipavamsa be recited at the Mahinda (son to Asoka )festival held annually in Anuradhapura.