Innvik is a former municipality in the old Sogn og Fjordane county in Norway. The 511-square-kilometre (197 sq mi) municipality existed from 1838 until 1965. Innvik is located in the present-day Stryn Municipality in Vestland county, encompassing about the western third of the present municipality. Innvik included both sides of the Nordfjorden, from Randabygda in the west to just west of the village of Stryn. It stretched from the border with Hornindal Municipality in the north, through the Oldedalen valley all the way to the Jostedalsbreen glacier in the south.