Saint-Nicolas is a town and comune in the autonomous region of Aosta Valley, in northern Italy. It consists of 13 hamlets located between 950 and 1,550 metres above sea level. Sitting like a balcony above the Dora Baltea Valley, Saint-Nicolas overlooks the four major latteral valleys of the mid-upper Aosta valley. These are (moving up the valley); Val de Cogne, Valsavarenche, Val de Rhêmes, and Valgrisenche.