| Castel Castagna | |
| Official Name: | Comune di Castel Castagna |
| Coordinates: | 42.55°N 56°W |
| Region: | Abruzzo |
| Province: | Teramo (TE) |
| Frazioni: | Bivio Castel Castagna, Castagna Vecchia, Chiavoni, Ronzano, Scaricasale, Vasto, Villa Ruzzi |
| Mayor: | Rosanna De Antoniis |
| Area Total Km2: | 17 |
| Population Footnotes: | [1] |
| Population Total: | 491 |
| Population As Of: | 31 May 2017 |
| Population Demonym: | Castagnoli |
| Elevation M: | 452 |
| Saint: | San Pietro Martire |
| Day: | 29 June |
| Postal Code: | 64030 |
| Area Code: | 0861 |
Castel Castagna is a town and comune in the province of Teramo in the Abruzzo region of central-southern Italy.It is a small hilltop town with a view of the Gran Sasso massif.