The Gorizia Hills is a hilly microregion in western Slovenia and northeastern Italy. It lies on the right bank of the Soča (Isonzo) River, north of the Italian town of Gorizia, after which it is named. The region covers around 120 km2 (46 sq mi) and has about 7,000 inhabitants, mostly ethnic Slovenes, with a small number of Friulian speakers in its westernmost part.

Gorizia, colloquially stara Gorica 'old Gorizia' to distinguish it from Nova Gorica, is a town and comune (municipality) in northeastern Italy, in the autonomous region of Friuli-Venezia Giulia. It is located at the foot of the Julian Alps, bordering Slovenia. It is the capital of the Regional decentralization entity of Gorizia and is a local center of tourism, industry, and commerce. Since 1947, a twin town of Nova Gorica has developed on the other side of the modern-day Italy–Slovenia border. The region was subject to territorial dispute between Italy and Yugoslavia after World War II: after the new boundaries were established in 1947 and the old town was left to Italy, Nova Gorica was built on the Yugoslav side. The two towns constitute a conurbation, which also includes the Slovenian municipality of Šempeter-Vrtojba. Since May 2011, these three towns have been joined in a common trans-border metropolitan zone, administered by a joint administration board.