The French submarine Rubis was a Saphir-class minelaying submarine which first served in the French submarine force, then the Free French Naval Forces (FNFL) during the Second World War and back with the French Navy. The boat was awarded numerous awards. Accordingly, as a result of Rubis's service with the FNFL, the boat was made a companion of the Ordre de la Libération by a decree issued by General Charles de Gaulle on 14 October 1941.

The Saphir-class submarines were a class of six submarines built in France between 1926 and 1935 for the French Navy. Most saw action during World War II for the Vichy French Navy or the Free French Naval Forces. Three were captured by Italian forces but not used.