The Blue Danube (French: Le Danube bleu) is a 1940 French drama film directed by Emil E. Reinert and Alfred Rode and starring Madeleine Sologne, José Noguéro and Marguerite Moreno.

[1] The film's sets were designed by the art director Émile Duquesne.

Rode had produced a previous version of the film featuring Conchita Montenegro and Thomy Bourdelle but the negative of this was damaged during a March 1939 fire at the LTC laboratories in Paris and had to be re-shot with a different cast.

The attractive Anika is courted both by fellow gypsy Sandor and by the wealthy Féry.

With the assistance of the fortune teller Maria, Anika sets out to find the truth about the matter.