Mother! (stylized as mother!) is a 2017 American psychological horror film written and directed by Darren Aronofsky, and starring Jennifer Lawrence, Javier Bardem, Ed Harris, Michelle Pfeiffer, Domhnall Gleeson, Brian Gleeson, and Kristen Wiig. Its plot, inspired by the Bible, follows a young woman whose tranquil life with her husband at their country home is disrupted by the arrival of a mysterious couple, leading to a series of increasingly chaotic and destructive events.

The film premiered on September 5, 2017, at the 74th Venice International Film Festival, where it was selected to compete for the Golden Lion. It was released in the United States by Paramount Pictures on September 15, 2017. The film grossed $44.5 million worldwide. It received polarized but generally positive reviews from critics; on the other hand, Mother! received a rare "F" CinemaScore grade from audiences.