Stangvik is a former municipality in Møre og Romsdal county, Norway. The 437-square-kilometre (169 sq mi) municipality existed from 1838 until its dissolution in 1965. The municipality of Stangvik (historically spelled Stangvig) encompassed much of the area surrounding the Trongfjorden and the smaller fjords that branch off of it such as the , Stangvikfjorden, and . The municipality was mostly located in what is now Surnadal Municipality and also small portions of what is now Sunndal Municipality and Tingvoll Municipality. The administrative centre of the municipality was the village of Stangvik where Stangvik Church is located.