Two Days, One Night (French: Deux jours, une nuit) is a 2014 drama film written and directed by the Dardenne brothers, starring Marion Cotillard and Fabrizio Rongione, with Christelle Cornil, Olivier Gourmet and Catherine Salée in supporting roles. The film is an international co-production between Belgium, France, and Italy, and had its world premiere at the 2014 Cannes Film Festival, where it competed for the Palme d'Or. It was released theatrically in Belgium and France on 21 May 2014, through Cinéart and Diaphana, respectively, and in Italy through BIM Distribuzione on 13 November 2014.

Both the film and Cotillard's performance received generally positive reviews, and the film sold over 1 million tickets in Europe and grossed $9 million worldwide on a €7 million budget, becoming the Dardenne brothers' highest-grossing film. Among its numerous accolades, the film won the Sydney Film Prize at the 2014 Sydney Film Festival, was nominated for a BAFTA Award for Best Film Not in the English Language, was nominated for two César Awards, was nominated for three European Film Awards (winning Best Actress for Cotillard), and was nominated for nine Magritte Awards (winning three, including Best Film and Best Director for Jean-Pierre and Luc Dardenne). Cotillard also won the National Society of Film Critics Award for Best Actress and the New York Film Critics Circle Award for Best Actress. Time magazine ranked Cotillard's performance in Two Days, One Night as the seventh best movie performance of 2014.

Two Days, One Night was selected as Belgium's submission for the Academy Award for Best Foreign Language Film at the 87th Academy Awards, but was not selected as one of the final five nominees, though Cotillard received a Best Actress nomination for her performance in the film, making her the first actor to be nominated for an Academy Award for a Belgian film.