The Jumping Jack (German: Der Hampelmann) is a 1938 German comedy film directed by Karlheinz Martin and starring Hilde Krahl, Wolf Albach-Retty and Lotte Lang. It was shot at the Rosenhügel Studios in Vienna and on location around the city and in Attersee. The film's sets were designed by the art director Hans Ledersteger. Produced in Austria, it was released in cinemas several months after the country had been incorporated into Greater Germany during the Anschluss.