Alagna (Lombard: Lagna) is a comune (municipality) in the Province of Pavia in the Italian region of Lombardy, located about 40 kilometres (25 mi) southwest of Milan and about 20 kilometres (12 mi) west of Pavia. As of 31 December 2004, it had a population of 876 and an area of 8.6 square kilometres (3.3 sq mi).[3]