| San Pietro al Tanagro | |
| Official Name: | Comune di San Pietro al Tanagro |
| Native Name: | San Pietro al Tanagro |
| Shield Alt: | San Pietro al Tanagro's shield. |
| Coordinates: | 40.4564°N 15.4831°W |
| Province: | (SA) |
| Area Total Km2: | 15 |
| Population Total: | 1664 |
| Population Demonym: | Sanpietresi |
| Saint: | St. Peter |
| Day: | 29th June |
| Postal Code: | 84030 |
| Area Code: | 0975 |
San Pietro al Tanagro is a village and comune in the province of Salerno in the Campania region of south-west Italy.
San Pietro al Tanagro is 90 kilometers far from Salerno. It has a population of 1,640 inhabitants and a surface of 15,3 square kilometers thus showing a population density of 107,19 inhabitants per square kilometer. It rises 450 metres above the sea level.
The Town Hall is located in Via De Cusatis, phone (+39) 0975 399326, fax (+39) 0975 399326.
The municipality is bordered by Atena Lucana, Corleto Monforte, San Rufo, Sant'Arsenio and Teggiano.