The Trondheimsleia is a strait that runs between the islands of Smøla and Hitra and the mainland municipalities of Aure, Hemne, Snillfjord, and Agdenes in Møre og Romsdal and Sør-Trøndelag county, Norway. The 94-kilometre (58 mi) long strait has several fjords which branch off it including the Ramsøyfjorden, Hemnfjorden, and Trondheim Fjord. The islands of Leksa are located in the Trondheimsleia in Agdenes. The Hitra Tunnel is a road tunnel underneath the Trondheimsleia connecting Hitra and Snillfjord.
Coordinates: 63°24′45″N 8°33′10″E / 63.41250°N 8.55278°E