X-Men: Apocalypse is a 2016 American superhero film directed and produced by Bryan Singer and written by Simon Kinberg from a story by Singer, Kinberg, Michael Dougherty, and Dan Harris. The film is based on the fictional X-Men characters that appear in Marvel Comics. It is the sixth mainline installment in the X-Men film series and the ninth installment overall. It is the sequel to X-Men: Days of Future Past (2014) and stars James McAvoy, Michael Fassbender, Jennifer Lawrence, Oscar Isaac, Nicholas Hoult, Rose Byrne, Tye Sheridan, Sophie Turner, Olivia Munn, and Lucas Till. In the film, the ancient mutant En Sabah Nur / Apocalypse is inadvertently revived in 1983 and plans to recreate the world in his own image, leading the X-Men to try to stop him and defeat his team of mutants.

The film was announced by Singer in December 2013, with Kinberg, Dougherty, and Harris attached to develop the story. Casting began in October 2014, while principal photography commenced in April 2015 in Montreal and ended in August of the same year.

X-Men: Apocalypse premiered in London on May 9, 2016, and was released in the United States on May 27, 2016, in RealD 3D, IMAX 3D, 4DX and Dolby Cinema formats by 20th Century Fox. The film received mixed reviews from critics. A sequel, titled Dark Phoenix, was released on June 7, 2019.