Enna, known from the Middle Ages until 1926 as Castrogiovanni, is a city and comune located roughly at the center of Sicily, southern Italy, in the province of Enna, towering above the surrounding countryside. It has earned the nicknames belvedere and ombelico ("navel") of Sicily.

A comune is an administrative division of Italy, roughly equivalent to a township or municipality. It is the third-level administrative division of Italy, after regions and provinces. The comune can also have the title of città.