| Monasterolo del Castello | |
| Official Name: | Comune di Monasterolo del Castello |
| Coordinates: | 45.7667°N 65°W |
| Region: | Lombardy |
| Province: | Bergamo (BG) |
| Mayor: | Maurizio Trussardi |
| Area Total Km2: | 8.75 |
| Population Footnotes: | [1] |
| Population Total: | 1165 |
| Population As Of: | 30 April 2017 |
| Population Demonym: | Monasterolesi |
| Elevation M: | 365 |
| Postal Code: | 24060 |
| Area Code: | 035 |
Monasterolo del Castello (Bergamasque: Monastaröl) is a comune (municipality) in the Province of Bergamo in the Italian region of Lombardy, located about 70km (40miles) northeast of Milan and about 20km (10miles) northeast of Bergamo.
Monasterolo del Castello borders the following municipalities: Adrara San Martino, Adrara San Rocco, Casazza, Endine Gaiano, Fonteno, Grone, Ranzanico, Spinone al Lago.