Castelnuovo or Castel Nuovo (Italian for 'new castle/fortress') may refer to :

Places and jurisdictions

In Italy

Comuni (communes or municipalities):

• Castelnuovo, Trentino, Province of Trento
• Castelnuovo Belbo, Province of Asti
• Castelnuovo Berardenga, Province of Siena
• Castelnuovo Bocca d'Adda, Province of Lodi
• Castelnuovo Bormida, Province of Alessandria
• Castelnuovo Bozzente, Province of Como
• Castelnuovo Calcea, Province of Asti
• Castelnuovo Cilento, Province of Salerno
• Castelnuovo del Garda, Province of Verona
• Castelnuovo della Daunia, Province of Foggia
• Castelnuovo di Ceva, Province of Cuneo
• Castelnuovo di Conza, Province of Salerno
• Castelnuovo di Farfa, Province of Rieti
• Castelnuovo di Garfagnana, Province of Lucca
• Castelnuovo di Porto, Province of Rome
• Castelnuovo di Val di Cecina, Province of Pisa
• Castelnuovo Don Bosco, Province of Asti
• Castelnuovo Magra, Province of La Spezia
• Castelnuovo Nigra, Province of Turin
• Castelnuovo Parano, Province of Frosinone
• Castelnuovo Rangone, Province of Modena
• Castelnuovo Scrivia, Province of Alessandria

Frazioni (hamlets):

• Castelnuovo, part of Assisi, Province of Perugia, Umbria, central Italy
• Castelnuovo, part of Sassocorvaro Auditore, Province of Pesaro and Urbino
• Castelnuovo della Misericordia, part of Rosignano Marittimo, Province of Livorno
• Castelnuovo, part of Prato, Province of Prato
• Castelnuovo, part of Vergato, Province of Bologna
• Castelnuovo, part of Teolo, Province of Padova
• Castelnuovo dei Sabbioni, part of Cavriglia, Province of Arezzo

Other places and fortresses :

• Castelnuovo, Avezzano, medieval town forming part of the Comune of Avezzano, Province of L’Aquila, Abruzzo
• Castel Nuovo, a fortress in Naples
• Castello Nuovo, a former fortress in Brescia

Elsewhere

• Castelnuovo d'Istria, Italian name of Podgrad, Ilirska Bistrica, Slovenia
• Castelnuovo di Cattaro, often simply Castelnuovo, former name of Herceg Novi, Montenegro
• Kaštel Novi, Dalmatia, Croatia; Castelnuovo in Italian

Other uses

• Castelnuovo (surname)
• U.S. Castelnuovo Garfagnana, Italian football club
• Siege of Castelnuovo, 1539 battle between Spain and the Ottoman Empire

See also

• Castelnovo (disambiguation)
• Castelnuovo–de Franchis theorem

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