Italy

Italy was a country before the Great War.

Fallout 4

 * Eddie Winter mentions attempting to further Irish/Italian relations in Boston before the war.

Fallout 76

 * The pre-War restaurants Little Italy and Graviano's Italian Eatery are Italian-themed diners.
 * The pre-War proprietor of Miller's Appliances at the Watoga Shopping Plaza managed to increase sales by programming his Mister Handy vendors to refer to all appliances in Italian.

Fallout Tactics
The Beretta 470 Silverhawk is of Italian origin.

Fallout: Brotherhood of Steel

 * The 9mm M9FS Beretta was manufactured by the Italian Fabbrica d'Armi Pietro Beretta firearms company.

Locations

 * Sicily
 * Syracuse
 * Pompeii
 * Mount Etna
 * Mount Vesuvius
 * Rubicon

Appearances
Italy is mentioned in Fallout 4, Fallout 76, Fallout Tactics and Fallout: Brotherhood of Steel.