Alone is an Italian municipality in the autonomous region of Aosta Valley.

Alone has 244 inhabitants (as at 31 December 2012) and lies at an altitude of 1,190 m above sea level. M. near the road to the Great St. Bernard Pass in the Valle del Gran San Bernardo. This is a side valley of the Valle d'Aosta.

Alone consists of the districts Allamanaz, Ayez, Dayllon and Villa. In the district Ayez a house from the 15th century is a listed building, which is built of natural stone almost without mortar.

In the Fascist period, the village was the Italianate name Alleno.

Neighboring municipalities are Doues Etroubles and Gignod.