The Italian word arengario (also spelled arrengario or arengo; pl.: arengari, arrengari, arenghi) refers to government buildings of different historic periods. The word comes from the verb "arringare" ("to address"), as arengari usually have balconies from which the authorities would address the population in public speeches.
The word originally indicated the town hall of Italian medieval communes, especially in Northern Italy. It was reintroduced during the Fascist era, also to refer to local governments seats, such as the seat of the podestà (mayor). As a consequence, a number of both medieval and modern (Fascist) buildings in different Italian cities are known as "Arengario". Notable arengari include:
- "Broletto" (has a partially overlapping meaning)