| Castelguidone | |
| Official Name: | Comune di Castelguidone |
| Coordinates: | 41.8167°N 45°W |
| Province: | (CH) |
| Frazioni: | Inforchia, Piane |
| Mayor: | Donato Sabatin |
| Area Total Km2: | 14 |
| Population Footnotes: | [1] |
| Population Total: | 367 |
| Population As Of: | 31 March 2017 |
| Population Demonym: | Castelguidonesi |
| Elevation M: | 775 |
| Postal Code: | 66040 |
| Area Code: | 0873 |
Castelguidone (Abruzzese: Neapolitan: Lu Cuastìlle) is a comune and town in the province of Chieti in the Abruzzo region of Italy.