Moncestino (Monsëstin in Piedmontese) is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 40 kilometres (25 mi) east of Turin and about 45 kilometres (28 mi) northwest of Alessandria. As of 31 December 2004, it had a population of 238 and an area of 6.4 square kilometres (2.5 sq mi).[3]