Årstein

or is the administrative centre of Gratangen Municipality in Troms county, Norway. The village is located on the north side of the Gratangsfjorden at the narrowest point along the fjord. The Årstein Bridge crosses the fjord here. The village is located about northwest of the village of Fjordbotn and about from the village of Hilleshamn.
The Årstein area has 211 inhabitants, making it the largest urbanized area in the municipality. Gratangen Church is located in the village. It was designed in a modernist style by Oskar Nordeval and opened in 1971.