Ponso is a comune (municipality) in the Province of Padua in the Italian region Veneto, located about 60 km southwest of Venice and about 35 km southwest of Padua. As of 31 December 2004, it had a population of 2,435 and an area of 10.9 km2. The municipality of Ponso contains the frazioni (subdivisions, mainly villages and hamlets) Bresega and Chiesazza. Ponso borders the following municipalities: Carceri, Ospedaletto Euganeo, Piacenza d'Adige, Santa Margherita d'Adige, Vighizzolo d'Este. Among its buildings is the 17th-century Villa Francanzani.

Demographic evolution