Muonio (previously called Muonionniska; Northern Sami: Muoná) is a municipality of Finland. The town is located in fell-region of far northern Finland above the Arctic Circle on the country's western border with Sweden, the Muonio River. It lies within the area of the former Lappi (Lapland) province in the Fell Lapland subregion. The next closest Finnish municipalities are Enontekiö to the north, Kittilä on the east, and Kolari to the south. Southwest of the town, a road bridge crosses the Muonio River, across the river, in Sweden, lies the nearby hamlet of Muoniovaara ("Muonio hill") in northern Pajala Municipality in Norrbotten County.
The area has been occupied by humans for at least 10,000 years; their arrival is thought to have coincided with deglaciation at the end of the Younger Dryas. They likely arrived from the south or east, since the Scandinavian Mountains rise 2,100 metres on the west, and over 1,300 metres to the north - both form a significant barrier to migration. Remains of eight dwellings from the Middle Stone Age have been excavated on the shore of Lake Akajarvi (fifteen miles from the center of the present-day village).
