Sunday Romance (Hungarian: Bakaruhában) is a 1957 Hungarian period romantic drama film directed by Imre Fehér and starring Iván Darvas, Margit Bara and Sándor Pécsi. It is also known by the alternative title In Soldier's Uniform. It was based on the 1931 story of the same title by Sándor Hunyady, which had previously been adapted into the 1938 American film The Girl Downstairs. It was shot at the Hunnia Studios in Budapest and on location around Eger in Northern Hungary. The film's sets were designed by the art director Mátyás Varga.

The film was screened at the 1957 Venice Film Festival. It was one of the most popular films at the era, with over three and a half million admissions at the domestic box office. In 1968 it was voted as one of the Budapest Twelve, the best films made in Communist Hungary.