Gioia Sannitica is a comune (municipality) in the Province of Caserta in the Italian region Campania, located about 50 km northeast of Naples and about 30 km northeast of Caserta. Gioia Sannitica borders the following municipalities: Alife, Alvignano, Cusano Mutri, Faicchio, Ruviano, San Potito Sannitico. A hill nearby is home to a Norman castle, connected to a small village which went depopulated in the 14th–15th centuries.