The Fréjus Road Tunnel (Italian: Traforo del Fréjus, French: Tunnel du Fréjus) is a tunnel that connects France and Italy. It runs under Col du Fréjus in the Cottian Alps between Modane in France and Bardonecchia in Italy. It is one of the major trans-Alpine transport routes between France and Italy being used for 80% of the commercial road traffic.
Construction of the 13 km (8.1 mi) long tunnel started in 1974, and it came into service on 12 July 1980, leading to the closure of the motorail shuttle service in the Fréjus Rail Tunnel. It cost 2 billion francs (equivalent to €700 million at 2005 prices). It is the thirteenth longest road tunnel in the world and the longest road tunnel that crosses an international border.