Daniel is a 1983 drama film directed by Sidney Lumet from a screenplay by E. L. Doctorow, based on his 1971 novel The Book of Daniel.

The film stars Timothy Hutton, Mandy Patinkin, Lindsay Crouse, and Edward Asner.

The film was based on the life story of Julius and Ethel Rosenberg, who were convicted as spies and executed in the electric chair by the United States government in 1953 for giving nuclear secrets to the Soviet Union.

This story follows their fictionalized son as he attempts to find the truth.

Daniel received mixed reviews, and it was not a box-office success upon its limited release.