| Tognazza | |
| Coordinates: | 43.3456°N 11.2869°W |
| Province: | Siena (SI) |
| Comune: | Monteriggioni |
| Elevation M: | 340 |
| Population Total: | 417 |
| Population As Of: | 2011 |
Tognazza is a village in Tuscany, central Italy, administratively a frazione of the comune of Monteriggioni, province of Siena. At the time of the 2001 census its population was 323.[1]
Tognazza is about 10 km from Siena and 9 km from Monteriggioni.