Caselette ( Caslette Piedmontese ) is a municipality with 2995 inhabitants ( 31 December 2012) in the Italian province of Turin (TO ), Region Piedmont.

Caselette is member in the mountain commune Comunità Montana Bassa Valle di Susa and Val Cenischia. The neighboring municipalities are Val della Torre, Almese, Alpignano, Avigliana, Rivoli, Rosta and Buttigliera Alta.

The municipality covers an area of 14 km ². Patron saint of the place are the St George and the SS. Marius, Martha, and Audifax Abacum.

Caselette is located on a small hill at the foot of Monte Musine at the beginning of the Val di Susa, on the left side of the Dora Riparia. Caselette is 18 km from Turin and 38 km from Susa and below the Cays Castle, which dominates the whole valley.