Collesalvetti is a comune in the Province of Livorno in the Italian region Tuscany, located about 70 kilometres southwest of Florence, 20 kilometres northeast of Livorno and only 16 kilometres south from Pisa.
Collesalvetti borders the following municipalities: Cascina, Crespina, Fauglia, Livorno, Orciano Pisano, Pisa, Rosignano Marittimo.
Wikipedia https://en.wikipedia.org/wiki/Collesalvetti
Coordinates 43°35'20.083" N 10°28'34.55" E