Adventure on the Southern Express () is a 1934 German thriller film directed by Erich Waschneck and starring Charlotte Susa, Karl Ludwig Diehl and Ralph Arthur Roberts. It was shot at the Johannisthal Studios in Berlin and on location in Northern Italy and Switzerland. The film's sets were designed by the art director Otto Guelstorff.
While a train is travelling through the Italian Alps, the jewellery of a wealthy young widow is stolen. An ex-soldier working as a waiter on the train comes under suspicion of the crime.