The 14 metropolitan cities of Italy are administrative divisions of Italy, operative since 2015, which are a special type of province. The metropolitan city, as defined by law, includes a large core city and the surrounding suburbs and countryside closely related to it by economic activities and essential public services, as well as to cultural relations and to territorial features.

Naples is the regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 909,048 within the city's administrative limits as of 2022. Its province-level municipality is the third-most populous metropolitan city in Italy with a population of 3,115,320 residents, and its metropolitan area stretches beyond the boundaries of the city wall for approximately 30 kilometres.