Vyasa (; Sanskrit: व्यास, literally "Compiler") is a central and revered figure in most Hindu traditions. He is also sometimes called Veda Vyāsa (वेदव्यास, veda-vyāsa, "the one who classified the Vedas") or Krishna Dvaipāyana (referring to his dark complexion and birthplace). He is generally considered the author of the Mahabharata, as well as a character in it and the scribe of both the Vedas and Puranas, also known as Puranik. Vyasa is also considered to be one of the seven Chiranjivins (long lived, or immortals), who are still in existence according to Hindu belief.
The festival of Guru Purnima is dedicated to him. It is also known as Vyasa Purnima, for it is the day believed to be both his birthday and the day he divided the Vedas.