Saint-Nicolas (French: [sɛ̃ nikɔla] ⓘ; Valdôtain: Sen-Nicolà) is a town and comune in the autonomous region of Aosta Valley, in northern Italy.

Saint-Nicolas was the birthplace of Jean-Baptiste Cerlogne, a abbot who firstly studied Aosta Valley's native language, the Valdôtain dialect.

Among the center's holdings is the archive of the "Concours Cerlogne," a poetry, drama and music competition in the regional language reserved for elementary school students in the Aosta Valley that has been held annually since 1963.

This museum, situated in the village of Lyverloulaz, demonstrates the impact of agricultural mechanization in Aosta Valley through the experiences of Joseph Gerbore.

Founded by the municipality of Saint-Nicolas, the Aosta Valley Region, and the European Union, it hosts exhibitions, including Le temps des pionniers, at the Maison de la Tor building.