| Castelbaldo | |
| Official Name: | Comune di Castelbaldo |
| Coordinates: | 45.1333°N 38°W |
| Region: | Veneto |
| Province: | Padua (PD) |
| Mayor: | Riccardo Berardinello |
| Area Total Km2: | 15.17 |
| Population Footnotes: | [1] |
| Population Total: | 1421 |
| Population As Of: | 31 August 2021 |
| Population Demonym: | Castelbaldesi |
| Elevation M: | 12 |
| Postal Code: | 35040 |
| Area Code: | 0425 |
Castelbaldo is a comune (municipality) in the Province of Padua in the Italian region Veneto, located about 80km (50miles) southwest of Venice and about 45km (28miles) southwest of Padua.
Castelbaldo borders the following municipalities: Badia Polesine, Masi, Merlara, Terrazzo.
The commune's history dates back to 1292, when the Paduans built a castle on the left back of the Adige river. Its name is derived from both the Italian word for castle and the name of Padua's Podesta during the time of its construction, Lambertuccio de' Frescobaldi.[2]