Kopren (Bulgarian and Serbian Cyrillic: Копрен) is a summit in the western Balkan Mountains, on the border ridge between Bulgaria and Serbia.

[1] The western slopes of Kopren towards Serbia are a subalpine plateau.

Towards Bulgaria, the eastern face of Kopren is steep and rocky as it descends to Kopilovtsi.

The stone ruins of an abandoned border post stand at 1,840 m (6,040 ft) below Kopren on the Bulgarian side.

The summit boasts panoramic views of the entire Chiprovtsi Mountain and the Berkovitsa Mountain with Kom Peak, as well as of Montana and the Ogosta Reservoir in the lowlands.