Back Then is a 1943 German drama film directed by Rolf Hansen and starring Zarah Leander, Hans Stüwe, and Rossano Brazzi. The film's sets were designed by Walter Haag.
It was made at the Babelsberg Studio, by Universum Film AG, Germany's largest film company. It was Leander's final film of the Nazi era, as she returned to Sweden shortly afterwards. This was a blow for the German film industry, as she was the most popular and highest-paid star. Leander's next film was not for another seven years, when she made a comeback in Gabriela (1950).