Duomo (English: /ˈdwoʊmoʊ/, Italian: [ˈdwɔːmo]) is an Italian term for the main church of a city or a town, usually with the features of, or having been built to serve as a cathedral, whether or not it currently plays this role. The Duomo of Monza, for example, has never been a diocesan seat and is by definition not a cathedral. In a similar way, the town of Asolo has not had its own bishop since the 10th century, but the main church (rebuilt since then) is still called the Asolo Duomo. By contradistinction, the Italian word for a cathedral sensu stricto is cattedrale. There is no direct translation of "duomo" into English, leading to many such churches being erroneously called "cathedral" in English, regardless of whether the church in question hosts a bishop. Each city or town will have only one duomo, unless there are different denominations involved.
Locally, people usually use il Duomo, the Duomo, without regard to the full proper name of the church.