The Maursund Tunnel (Norwegian: Maursundtunnelen) is an undersea tunnel in Troms county, Norway.

The tunnel goes under the Maursundet strait connecting the mainland part of Nordreisa Municipality with the island of Kågen in Skjervøy Municipality.

[1] The 2,122-metre (6,962 ft) long tunnel reaches a depth of 92.5 metres (303 ft) below sea level and has a 10% grade in some parts of the tunnel.

The tunnel, which was opened in 1991, and the nearby Skattørsundet Bridge connect the large village of Skjervøy to the mainland.

[2] This Norwegian tunnel-related article is a stub.