Orphan is a 2009 psychological horror film directed by Jaume Collet-Serra and written by David Leslie Johnson from a story by Alex Mace. The film stars Vera Farmiga, Peter Sarsgaard, Isabelle Fuhrman, CCH Pounder, Jimmy Bennett and Aryana Engineer. The plot centers on a couple who, after the death of their unborn child, adopt a psychopathic nine-year-old girl with a mysterious past.

The film is an international co-production between the United States, Canada, Germany and France. It was produced by Joel Silver and Susan Downey of Dark Castle Entertainment, and Leonardo DiCaprio and Jennifer Davisson Killoran of Appian Way Productions. Principal photography for the film took place in Canada, in the cities of St. Thomas, Toronto, Port Hope, and Montreal.

Orphan was released in the United States on July 24, 2009, by Warner Bros. Pictures. The film received mixed reviews from critics, who praised its dark humor, scares and Fuhrman's performance as Esther, but criticized its formulaic screenplay, uneven pacing and two-hour runtime. The film grossed $78.8 million worldwide against a $20 million budget. A prequel, titled Orphan: First Kill, was released in 2022, with Fuhrman reprising her role.