Downton Abbey is a 2019 historical drama film directed by Michael Engler from a screenplay by Julian Fellowes, based on the television series of the same name created by Fellowes. The film continues the storyline from the series, with much of the original cast returning. Set in 1927, it depicts a royal visit to the Crawley family's stately home in Yorkshire. As royal staff members descend on Downton, an assassin has also arrived and attempts to kill the monarch.

Producer Gareth Neame and Fellowes started planning a feature adaptation in 2016, shortly after the series ended. It was officially confirmed in July 2018 and principal photography began later that month, lasting through to November.

Downton Abbey premiered at the Odeon Luxe Leicester Square in London on 9 September 2019 and was released in the United Kingdom on 13 September and in the United States on 20 September by Focus Features. The film received generally positive reviews from critics and grossed $194.7 million worldwide against a production budget of $13–20 million.

A sequel, Downton Abbey: A New Era, was released in the United Kingdom in April 2022 and a third film will be released in September 2025.