The European road E401 or E401 is a road that only runs through France.
The road starts near Saint-Brieuc and ends in Caen. Between Saint-Brieuc and Tramain are the E401 and the E50 on the same track. Between Pontaubault and Villedieu-les-Poêles are the E401 and the E3 on the same track.
The E401 runs over on the following national roadnumbers: