Naples is the regional capital of Campania, located in southern Italy. It serves as the largest city in the southern region and ranks as the third-largest city in Italy, following Rome and Milan.
The city's administrative limits house a population of 905,050 as of 2026, while its province-level municipality is the third most populous metropolitan city in the country with 2,954,847 residents. The broader metropolitan area encompasses approximately 4.4 million people and extends roughly 30 kilometres beyond the city's boundaries.
Naples holds a significant role in international diplomacy as the host of the Parliamentary Assembly of the Mediterranean and NATO's Allied Joint Force Command Naples.