Nativity! is a 2009 British Christmas musical comedy film directed by Debbie Isitt and released on 27 November 2009 and the first instalment in the Nativity film series. The film stars Martin Freeman and Ashley Jensen. In the film, teacher Paul Maddens (Freeman) lies to his rival that Hollywood are coming to watch his school's Christmas nativity, but after the lie gets out of hand, he must resolve the issue fast. The film was written by its director, Debbie Isitt, but was also partially improvised.

The film premiered on 23 November 2009 in the SkyDome Arena, Coventry, England.It was released in cinemas on 27 November 2009. The film was followed by Nativity 2: Danger in the Manger (2012), Nativity 3: Dude, Where's My Donkey? (2014), and Nativity Rocks! (2018).

In 2017 a stage musical adaptation premiered and has since toured the UK over the subsequent Christmas seasons.