Ulstein is a municipality in Møre og Romsdal county, Norway. It is part of the Sunnmøre region. The commercial and administrative centre of Ulstein is the town of Ulsteinvik. The municipality occupies the western half of the island of Hareidlandet, as well as about 30 smaller islands, four of which are populated.

Møre og Romsdal is a county in the northernmost part of Western Norway. It borders the counties of Trøndelag, Innlandet, and Vestland. The county administration is located in the town of Molde, while Ålesund is the largest town. The county is governed by the Møre og Romsdal County Municipality which includes an elected county council and a county mayor. The national government is represented by the county governor.