75th Anniversary Selatin Tunnel (Turkish: 75. Yıl Selatin Tüneli) is a road tunnel constructed on the motorway O-31 E87 at the province border of Izmir and Aydın western Turkey. It is situated 35 km (22 mi) northwest of Aydın and 80 km (50 mi) southeast of Izmir between the junctions Belevi and Germencik.