Chiusa, an Italian word for a narrow mountain pass, as for instance the Chiusa dell' Adige, near Verona, and the name of a number of localities in Italy, including a Benedictine abbey, San Michele della Chiusa, on Monte Pirchiriano, near a hamlet called La Chiusa, about 11 m. N. E. of Turin, now used as a hospice and as the burial place of the royal family. The following are the largest towns of the name. I. Chiusa di Pesio, in the province and 7 m. S. E. of Cuneo, on the left bank of the Pesio; pop. about 6,500. It is well built, and contains ruins of the old castle of Mira-bella. Silk and glass, and particularly mirrors, are extensively manufactured here. A continuation of the Roman .Emilian way passed in this vicinity. II. Chiusa Selafani, Sicily, in the province and 30 m. S. by W. of Palermo; pop. about 7,000. It was founded about 1320 by Matteo Sclafani, count of Aderno. The prominent buildings are the parish church, with pointed arches resting on stunted columns, and a Capuchin convent with a tine picture of the "Adoration of the Magi." Precious metals and iron are said to have been found here in ancient times, and jasper and especially agates still abound. On a rock 2 m.
S. W. of Chiusa is the village of Giuliana, with a castle and fortification constructed by Frederick II. of Aragon.