Crosa
Frazione
View of Crosa
Crosa Location of Crosa in Italy
Coordinates: 45°35′N 8°13′E / 45.583°N 8.217°E / 45.583; 8.217
Country	Italy
Region	Piedmont
Province	Province of Biella (BI)
Comune	Lessona
Area
• Total	1.0 km2 (0.39 sq mi)
Population  (Dec. 2015)
• Total	354
• Density	350/km2 (920/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	13853
Dialing code	015

Crosa is a frazione of the comune of Lessona, in the Province of Biella in the Italian region Piedmont, located about 70 kilometres (43 mi) northeast of Turin and about 12 kilometres (7 mi) northeast of Biella. Until December 31, 2015, it was an autonomous municipality with 354 inhabitants and an area of 1.0 square kilometre (0.39 mi²).^[1] From 1 January 2016 Crosa was absorbed by the neighbouring municipality of Lessona.

As an autonomous comune Crosa bordered the following municipalities: Casapinta, Cossato, Lessona, Strona.