Day for Night (French: La Nuit américaine, lit. 'American Night') is a 1973 romantic comedy-drama film co-written and directed by François Truffaut. The metafictional and self-reflexive film chronicles the troubled production of a melodrama, and the various personal and professional challenges of the cast and crew. It stars Jacqueline Bisset, Valentina Cortese, Jean-Pierre Aumont, Dani, Alexandra Stewart, Jean-Pierre Léaud and Truffaut himself.

The film premiered out of competition at the 1973 Cannes Film Festival and won the Academy Award for Best Foreign Language Film the following year. At the 1975 Oscars, the film was nominated for Best Director, Best Original Screenplay, and Best Supporting Actress for Valentina Cortese. The film also won three BAFTA Awards, for Best Film, Best Direction, and Best Actress in a Supporting Role for Cortese.

Retrospective reviews have appraised Day for Night as one of Truffaut's best films, and one of the greatest films of all time.