| Castel del Giudice | |
| Official Name: | Comune di Castel del Giudice |
| Coordinates: | 41.85°N 28°W |
| Region: | Molise |
| Province: | Isernia (IS) |
| Mayor: | Lino Nicola Gentile |
| Area Total Km2: | 14.81 |
| Population Footnotes: | [1] |
| Population Total: | 324 |
| Population As Of: | 31 December 2017 |
| Population Demonym: | Castellani |
| Elevation M: | 800 |
| Saint: | St. Nicholas of Bari |
| Day: | 6 December |
| Postal Code: | 86080 |
| Area Code: | 0865 |
Castel del Giudice is a comune (municipality) in the Province of Isernia in the Italian region of Molise, located about 50km (30miles) northwest of Campobasso and about 30km (20miles) north of Isernia.
Castel del Giudice borders the following municipalities: Ateleta, Capracotta, Gamberale, San Pietro Avellana, Sant'Angelo del Pesco.