The Municipality of Brda is a municipality in western Slovenia. It is located in the Slovenian Littoral region, extending from the Italian border to the Soča River. It is bounded by Sabotin Hill to the east and Korada Hill to the north.

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.