Vestfjarðagöng

Vestfjarðagöng (, regionally also , ) is the longest tunnel in Iceland, located in Westfjords in northwestern Iceland. It has a length of and was opened in September 1996. thumb|250px|right|Junction at the core of the tunnel.

The tunnel has three entrances and the three arms meet at junction in the tunnel. The three arms are known as: Breiðadalur, 4,150 m (13,615 ft), which gives access to Flateyri and the south-western part of the Westfjords; Botnsdalur 2,907 m (9,537 ft), which gives access to the village of Suðureyri to the west, a dead end route; Tungudalur 2,103 m (6,900 ft), which gives access to Ísafjörður and the northern part of the Westfjords.