I Don't Want to Be Born is a 1975 British horror film directed by Peter Sasdy and starring Joan Collins, Ralph Bates, Eileen Atkins, and Donald Pleasence. Its plot follows a woman who gives birth to a child that appears to be demonically possessed.

The film was originally marketed as a straight-faced and serious product, and as such was comprehensively mauled by critics of the time. However it later gained a reputation as a cult film favourite due to its perceived shortcomings, absurdities and unintentional camp comedy appeal. It was released in the United States under the alternate title The Devil Within Her. Other alternate titles include The Monster and Sharon's Baby.