Naustdal is a municipality in Sogn og Fjordane county, Norway. It is located in the traditional district of Sunnfjord. The administrative centre is the village of Naustdal, which has 1,138 inhabitants (2012). Other villages in Naustdal include Indrevevring and Helle. Naustdal is situated between the towns of Førde and Florø, along the Norwegian National Road 5 highway. The Naustdal Tunnel runs through the mountains to connect to the town of Florø.