Mr. & Mrs. '55 is a 1955 Indian romantic comedy film directed and produced by Guru Dutt, from a screenplay written by Abrar Alvi. A socially critical film set in urban Mumbai, it stars Madhubala as Anita Verma, a naive heiress who is forced into a marriage with an unemployed cartoonist (Guru Dutt) to save her millions.

Mr. & Mrs. '55 was among the early works of Dutt, and was also one of the few comedies made by him. Upon its theatrical release on 11 February 1955, the film emerged as a major commercial success. Its box-office success marked a reversal of fortunes for actress Madhubala, who was one of the film stars deemed "box office poison" in 1954. Her portrayal of Anita Verma has been generally considered one of her most memorable and identifiable performances.

In 2019, Time Out placed it at the 57th place in the list of "The 100 Best Bollywood movies". The movie was appreciated for its comic sequences but was criticised for its problematic portrayal of feminism and progressive themes.