Gentlemen Marry Brunettes is a 1955 American Technicolor musical romantic comedy film directed by Richard Sale, who co-wrote the screenplay with Mary Loos, based on the 1927 novel But Gentlemen Marry Brunettes by Anita Loos, aunt of Mary Loos. The film stars Jane Russell and Jeanne Crain. It was produced by Sale and Bob Waterfield, with Robert Bassler as executive producer.

Anita Loos authored the 1925 novel and 1926 play Gentlemen Prefer Blondes, which had been adapted into the highly successful 1953 film of the same name, starring Russell and Marilyn Monroe. The studio attempted to repeat the formula, with Russell returning but Jeanne Crain stepping in for a presumably otherwise engaged Monroe (both women played new characters). Alan Young, Scott Brady and Rudy Vallee also appear. However, Brunettes was not as well received as its predecessor.

With choreography by Jack Cole, who had previously contributed to Blondes, a young Gwen Verdon filmed a specialty number that was cut from the US release as being too sexy.