Ørsta is a village and municipality in Møre og Romsdal county, Norway. It is part of the Sunnmøre region of Western Norway. The administrative centre of the municipality is the village of Ørsta. Other villages in the municipality include Hovdebygda, Flåskjer, Leira, Urke, Bjørke, Sæbø, Sætre, and Store-Standal.The village of Ørsta is located at the end of the Ørstafjorden, just south of the mountain Saudehornet. The 5.63-square-kilometre (2.17 sq mi) village has a population (2009) of 6,495.
The municipality was established on 1 August 1883 when it was separated from the municipality of Volda. The initial population was 2,070. On 1 January 1893, the Ytrestølen farm (population: 13) was transferred from Ørsta to Volda. On 1 January 1964, the municipalities of Hjørundfjord and Vartdal were also merged together with Ørsta. The new, larger municipality of Ørsta had a population of 9,252.The municipality is named after the Ørstafjorden (Old Norse: Œrstr). The meaning of the name is unknown. Before 1918, the name was written Ørsten.