Vik is a municipality in the county of Sogn og Fjordane, Norway. It is located in the traditional district of Sogn. The administrative center of Vik is the village of Vikøyri.
Vik was established as a municipality on 1 January 1838 (see formannskapsdistrikt). The original municipality was identical to the Vik parish (prestegjeld) with the sub-parishes (sokn) of Hopperstad, Hove, Arnafjord, and Kvamsøy. On 1 January 1964 the sub-parish of Kvamsøy (population: 363) was transferred from Vik to Balestrand and the sub-parish of Vangsnes (population: 189) was transferred from Balestrand to Vik. Also on this date, the Nybø and Nygjerdet farms were transferred to Høyanger. All these changes gave Vik a total population of 2,623. On 1 January 1992 the sub-parishes of Feios and Fresvik were transferred from Leikanger to Vik. This added 572 residents to the population of Vik.