Lavik is a former municipality in the old county of Sogn og Fjordane, Norway. It was located in the western part of the present-day municipality of Høyanger which is in Vestland county. The municipality was mostly on the northern side of the Sognefjorden. A small part of Lavik was located on the southern side of the Sognefjorden, a narrow strip of land running south around the Ikjefjorden, past the village of Øystrebø, all the way south to the border with Hordaland county.