The Ghost & Mrs. Muir is an American sitcom based on the 1947 film of the same name, which was based on the 1945 novel by R. A. Dick. It premiered in September 1968 on NBC. After NBC cancelled the series at the end of its first season, it was picked up by ABC for its second season before being cancelled a final time.

The Ghost and Mrs. Muir is a 1947 American supernatural romantic fantasy film starring Gene Tierney and Rex Harrison. It was directed by Joseph L. Mankiewicz, and is based on a 1945 novel written by Josephine Leslie under the pseudonym of R.A. Dick. In 1945, 20th Century Fox bought the film rights to the novel, published only in the United Kingdom at that time. It was shot entirely in California.