Ouija: Origin of Evil is a 2016 American supernatural horror film directed and edited by Mike Flanagan, and written by Flanagan and Jeff Howard. The film is a prequel to the 2014 film Ouija, and stars Elizabeth Reaser, Lulu Wilson, Annalise Basso, and Henry Thomas. A widow and her family introduce a Ouija board into their phony seance business, thereby inviting a spirit that possesses the youngest daughter.

Ouija: Origin of Evil was released in the United States on October 21, 2016, by Universal Pictures. The film grossed over $81 million worldwide and received positive reviews from critics, with many praising it as a significant improvement over its predecessor. Lin Shaye was the only cast member to have returned from the first film, appearing in a post-credit cameo.