The Tussen Tunnel (Norwegian: Tussentunnelen) is a 2,840-meter (9,320 ft) long road tunnel located on County Road 64 in Møre og Romsdal county, Norway.
The tunnel goes through the mountain Tussen and connects Hustadvika Municipality (near the village of Malme) and Molde Municipality (just north of the town of Molde), and it cuts off about 7 kilometres (4.3 mi) from the old road that goes through a valley around the mountain.
The tunnel opened on 13 October 1990 to shorten the trip on County Road 64 from Fræna (now part of Hustadvika) to Molde municipalities; however, the tunnel was privately owned.
The tunnel was originally not officially part of the county road.
The upgrades included replacement of all electro-technical equipment, including lights, ventilation, fire equipment; and the laying of new asphalt.