Bumburet is the largest valley of Kalasha Desh in Chitral District, Khyber Pakhtunkhwa, Pakistan. The Bumburet valley joins the Rumbur valley at 35°44′20″N 71°43′40″E(1640 m), and then joins the Kunar Valley at the village of Ayun(35°42′52″N 71°46′40″E, 1400 m),
some 20 km south (downstream) ofChitral. To the west the valley rises to a pass connecting to Afghanistan'sNuristan Province at about 4500 m.
The valley is inhabited by the Kalash people, and has become a tourist destination.