Enontekiö is a municipality in the Finnish part of Lapland, with approximately 1,800 inhabitants. It lies in the outermost northwest of Finland, occupying a large and very sparsely populated area of about 8,400 square kilometres between the Swedish and Norwegian borders. Its administrative centre is the village of Hetta.
Finland's highest point, the Halti fell, rises 1,324 metres above mean sea level in the north of Enontekiö. The municipality borders regions of Sweden and Norway that encompass the Scandinavian Mountains. About one fifth of the population are Sami people.
Enontekiö's main industries are tourism and reindeer husbandry.