John Wick: Chapter 4 is a 2023 American neo-noir action thriller film that is the sequel to John Wick: Chapter 3 – Parabellum (2019) and the fourth installment in the John Wick franchise, starring Keanu Reeves as the title character. It is directed and co-produced by Chad Stahelski and written by Shay Hatten and Michael Finch. It also features Donnie Yen, Bill Skarsgård, Laurence Fishburne, Hiroyuki Sanada, Shamier Anderson, Lance Reddick, Rina Sawayama, Scott Adkins, Clancy Brown, and Ian McShane. This is also the second film which featured the collaboration of Adkins and Yen, after Ip Man 4: The Finale (2019). In the film, John Wick sets out for revenge on the High Table and those who left him for dead.

Development of the fourth John Wick film, formally announced by Lionsgate in May 2019, was confirmed before the release of its predecessor. It is the first film in the franchise that was not written by franchise creator Derek Kolstad; Hatten was hired in May 2020, then Finch in March 2021. Principal photography took place from June to October 2021 in France, Germany, New York City, and Japan.

The planned release on May 21, 2021, was delayed by the COVID-19 pandemic. John Wick: Chapter 4 premiered at the Odeon Luxe Leicester Square in London on March 6, 2023, and was released in the United States on March 24. The film received acclaim from critics, with praise for its action sequences, Stahelski's direction, cinematography, choreography, visual style, writing, score, and performances, and has grossed $440.1 million worldwide, becoming the highest-grossing film in the franchise, as well as the ninth-highest-grossing film of the year domestically in the United States.

The film was released in China theatrically on 14 March 2025, making it the first movie in the franchise to be screened in China. This is widely believed to be possible due to the participation of Yen as one of the leads in the film, with local marketing highlighting Yen's arrival to the franchise and performance.

A spin-off/prequel, titled From the World of John Wick: Ballerina, is set for release on June 6, 2025, with another spin-off film focusing on the character of Caine in development. A fifth film is also in development with Stahelski returning to direct and Reeves reprising his role.