| Casal di Principe | |
| Official Name: | Comune di Casal di Principe |
| Coordinates: | 41.0167°N 22°W |
| Region: | Campania |
| Province: | Caserta (CE) |
| Mayor: | Renato Natale |
| Area Total Km2: | 23.4 |
| Population Footnotes: | [1] |
| Population Total: | 21374 |
| Population As Of: | 1 January 2015 |
| Population Demonym: | Casalesi |
| Elevation M: | 68 |
| Saint: | Maria SS. Preziosa |
| Day: | September 12 |
| Postal Code: | 81033 |
| Area Code: | 081 |
Casal di Principe (Campanian: Neapolitan: Casale 'e Principe or simply Neapolitan: Casale) is a comune (municipality) in the Province of Caserta in the Italian region of Campania, located about 25km (16miles) northwest of Naples and about 20km (10miles) southwest of Caserta. It has a population of approximately 21,000 people. The town is located on the territory of Agro aversano - a rural area with 19 comunes spread on its land, and is directly linked to the comune of San Cipriano d'Aversa.
Casal di Principe is also known for the export of buffalo mozzarella and organised crime.