is a town in Ulstein Municipality in Møre og Romsdal county, Norway. The town is the commercial and administrative centre of the municipality and as such, Ulsteinvik contains 74% of the municipal population. The 3.93-square-kilometre (970-acre) town has a population (2024) of 6,208 and a population density of 1,580 inhabitants per square kilometre (4,100/sq mi).