List of British films of 2023

This article lists feature-length British films and full-length documentaries that have their premiere in 2023 and were at least partly produced by the United Kingdom. It does not feature short films, medium-length films, made-for-TV films, pornographic films, filmed theater, VR films or interactive films, nor does it include films screened in previous years that have official release dates in 2023.

British films box office
The highest-grossing UK-qualifying and U.K. independent British films according to the British Film Institute released in 2023, by domestic box office gross revenue, are as follows:

Culturally British films
The following list comprises films not produced by a British or UK film studio but is strongly associated with British culture. The films in this list should fulfil at least three of the following criteria:
 * The film is adapted from a British source material.
 * The story is at least partially set in the United Kingdom.
 * The film was at least partially produced in the United Kingdom.
 * Many of the film's cast and crew members are British.

Mummies fulfills two of the criteria. The animated film is set in 21st century London and stars British actors including Joe Thomas, Eleanor Tomlinson, Celia Imrie, Hugh Bonneville, Sean Bean and Shakka.