Radiodiffusion française nationale, renamed Radiodiffusion Nationale (French pronunciation: [ʁadjodifyzjɔ̃ nɑsjɔnal]; RN), was a public broadcasting company in France that was in charge of the production, broadcasting and coordination of radio and television programs.

It was founded on 29 July 1939 by the decree of then Prime Minister Edouard Daladier.

The founding decision was motivated by the upcoming World War II, with the attempt to establish a state monopoly on broadcasting, coordinate propaganda and facilitate censorship.

In 1943, its headquarters were relocated to Paris, where the radio service under the direction of the Vichy propaganda minister Philippe Henriot received an anti-Semitic and pro-Axis character.

In the meantime, on 4 April 1944, the Provisional Government of the French Republic established its own RN in Algeria.