Nastik may refer to:

Nastika, Indian philosophical schools and persons that do not accept the authority of the Vedas as supreme; the word is often translated as "atheist" Nastik (1954 film), a 1954 Bollywood film by I. S. Johar starring Nalini Jaywant and Ajit Nastik (1983 film), a 1983 Bollywood film by Pramod Chakravorthy

See also Nastic (disambiguation) Astika (disambiguation), antonym of nastika