Catanzaro (pronounced [katanˈdzaːro] ( listen) or [katanˈtsaːro]; Greek: Katantheros (Κατανθέρος), Katastarioi Lokroi (Κατασταρίοι Λοκροί)), also known as the city of the two seas, is an Italian city of 369,134 (2001) inhabitants and the capital of the Calabria region and of its province.

The archbishop seat was the capital of the province of Calabria Ultra for over 200 years. It currently houses the University "Magna Græcia", the second largest University of Calabria.

Catanzaro is an urban center, with intense activity, including some coastal towns, such as Marina Sellia Soverato, and the municipalities of Silas, with a total of 156,196 inhabitants. Catanzaro is currently being consolidated to form a greater metropolitan area, by the Region of Calabria, and in connection with the town of Lamezia Terme, comprising 10 municipalities. This will lead to the creation of an integrated area which will extend from the coast to the Ionian Sea, involving over 200,000 inhabitants.

During the summer months, the Ionian coast from Catanzaro to Soverato is an important tourist attraction, especially for the youth, and is in the presence of several important structures located in the coastal districts of the city and the town of Copanello Soverato.