San Giuliano Terme is a comune, or municipality, situated in the Province of Pisa within the Tuscany region of Italy. It is located approximately 80 kilometres (50 mi) west of Florence and about 5 kilometres (3 mi) northeast of the city of Pisa.
As a local administrative division, it serves as a populated area within the Tuscan landscape, positioned in close proximity to one of Italy's major historical and coastal hubs.