| Sasso di Castalda | |
| Official Name: | Comune di Sasso di Castalda |
| Coordinates: | 40.4833°N 56°W |
| Region: | Basilicata |
| Province: | Potenza (PZ) |
| Mayor: | Rocchino Nardo |
| Area Total Km2: | 45.45 |
| Population Footnotes: | [1] |
| Population Total: | 853 |
| Population As Of: | 31 December 2009 |
| Population Demonym: | Sassesi |
| Elevation M: | 949 |
| Saint: | Saint Roch |
| Day: | 16 August |
| Postal Code: | 85050 |
| Area Code: | 0975 |
Sasso di Castalda (Lucano: Neapolitan: U Sàsse) is a town and comune within the province of Potenza, in the region of Basilicata, Italy.