Buti is a comune in the Province of Pisa in the Italian region Tuscany, located about 50 kilometres west of Florence and about 15 kilometre…Buti is a comune in the Province of Pisa in the Italian region Tuscany, located about 50 kilometres west of Florence and about 15 kilometres east of Pisa. As of 31 December 2004, it had a population of 5,566 and an area of 23.1 square kilometres.