The Granville-Avranches-Sourdeval tramway was a 71 km (44 mi) long 1,000 mm (3 ft 3+3⁄8 in) gauge railway from Condé-sur-Vire via Granville to Avranches in the Manche department of the Normandy region, which operated from 1908 to 1935.

The line opened in 1908, at a similar time as the Condé-Granville tramway and the Coutances-Lessay metre gauge railway.

These lines were operated by the Société des Chemins de Fer de la Manche (CFM) until 1935.

[6][7] 48°50′12″N 1°36′09″W / 48.83653194917484°N 1.602469970145911°W / 48.83653194917484; -1.602469970145911 (Granville)