Arnín is one of 41 parishes (administrative divisions) in Villaviciosa, a municipality within the province and autonomous community of Asturias, in northern Spain.
The parroquia is 1.24 km2 (0.48 sq mi) in size, with a population of 9 (INE 2006).
Half of the bridge that leads into Arnín marks the division of the two councils, separated at this point by the river.
The village of Arnín is about 80 meters above sea level, at 16.5 km from the capital of the council.
This article about a location in the Principality of Asturias, Spain, is a stub.