The Exorcist: Believer is a 2023 American supernatural horror film directed by David Gordon Green, who co-wrote the screenplay with Peter Sattler from a story by Scott Teems, Danny McBride, and Green. The sixth installment in The Exorcist franchise, it serves as a direct sequel to The Exorcist (1973). The film stars Leslie Odom Jr., Lidya Jewett, Olivia O'Neill in her film debut, Jennifer Nettles, Norbert Leo Butz, and Ann Dowd. Ellen Burstyn and Linda Blair reprise their roles from the original film. Its plot follows a photographer who must confront the nadir of evil when his daughter and her best friend are possessed.

Jason Blum served as a producer on the film through his Blumhouse Productions banner, alongside David and James G. Robinson through their Morgan Creek Entertainment banner, in association with executive producers Green and McBride's Rough House Pictures. The project began as a sequel to the original film in December 2020. Universal Pictures collaborated with Peacock to acquire distribution rights in July 2021 for $400 million, with intentions of launching a new trilogy of The Exorcist films. Principal photography took place between November 2022 and March 2023 on a production budget of $30 million.

The Exorcist: Believer was released in the United States on October 6, 2023. It grossed $137 million at the box office and received negative reviews from critics. Following the film's poor reception, a planned trilogy was scrapped the following year, with the franchise being rebooted.