The Dibër Valley (Albanian definite form: Dibra; Macedonian: Дебар, Debar; Turkish: Debre) is a section of the Black Drin river valley in the border region between North Macedonia and Albania.
Today, the Dibër Valley is split into two territorial divisions - Big Dibër (Albanian: Dibra e Madhe), which is centred around the city of Debar in the Debar Municipality of North Macedonia, and Little Dibër (Albanian: Dibra e Vogël), which is centred around the city of Peshkopi and forms the basis of the modern Dibër County and Dibër municipality of Albania. It is inhabited by an Albanian majority on both sides of the border, with a significant Macedonian minority in Big Dibër.