The Archdiocese of Capua is a Latin diocese of the Catholic Church in Capua, in Campania, Italy, but its archbishop no longer holds metropolitan rank and has no ecclesiastical province. Since 1979, it is a suffragan of the Archdiocese of Napoli, i.e. no longer has its own ecclesiastical province nor metropolitan status.

Capua is a city and comune in the province of Caserta, in the region of Campania, southern Italy, situated 25 km (16 mi) north of Naples, on the northeastern edge of the Campanian plain.