Bayuvi Dupki Peak, Mountain summit in Blagoevgrad Province, Bulgaria.

Bayuvi Dupki Peak rises to 2,820 meters above sea level within the Pirin mountain range, featuring karstified marble formations and steep eastern slopes that descend into a glacial cirque.

Bayuvi Dupki lies on the main ridge of the Pirin range in south-western Bulgaria, between Banski Suhodol and Kamenititsa, and is now within the Bayuvi Dupki–Dzhindzhiritsa reserve of Pirin National Park. The sources record no historical events at the summit itself; the surrounding slopes are crossed by a marked red trail from Kamenititski Preval to the Koncheto shelter, while two unmarked paths follow the crest and the northern point.

The name Bayuvi Dupki is shared by the peak, the cirque on its eastern side and the reserve that contains it. Visitors on the western slopes follow a marked eco-path, while the northern face is a climbing ground; the red-marked trail from Kamenititski Preval to the Koncheto shelter cuts across these western slopes.

From Kamenititski Preval, three paths lead to the Koncheto shelter; the most used is marked in red and cuts across the steep western slopes of Bayuvi Dupki. The other two, one following the main ridge and one cutting the northernmost point, are unmarked. The shelter lies 470 m southeast of the summit.

The summit hosts the only known location of Euphrasia drosocalyx within the Balkan Peninsula, making it a significant site for botanical research and endemic plant species conservation efforts.