The Spirit of Sidi-Brahim (French: L'esprit de Sidi-Brahim) is a 1939 French spy drama film directed by Marc Didier and starring René Dary, Colette Darfeuil and Abel Jacquin.

The title is a reference to the 1845 Battle of Sidi Brahim in which the French light infantry distinguished themselves.

An officer of the Chasseurs Alpins commanding a fort in the French Alps close to its border, assists a young woman who has been stopped by an avalanche and offers her shelter.

He falls in love with her, but she is an enemy agent tasked with stealing a vital document.

Having tricked him and made off with the secret, he is accused of treason and faces a court martial and firing squad.