Birth is a 2004 American psychological drama film co-written and directed by Jonathan Glazer. The film stars Nicole Kidman, Lauren Bacall, Cameron Bright, Danny Huston, Arliss Howard, Peter Stormare, Ted Levine, and Anne Heche. Its plot follows a woman who becomes convinced that her deceased husband Sean is reincarnated as a ten-year-old boy.

Distributed by New Line Cinema, Birth premiered in competition at the 61st Venice International Film Festival, polarizing critics upon its release and grossing $23.9 million on a budget of $20 million. Kidman was nominated for a Golden Globe Award for Best Actress in a Motion Picture – Drama for her performance. The film has been re-evaluated in later years and is considered a masterpiece by some publications.