Deybuk (; Dargwa: ДейбукI) is a rural locality (a selo) in Sagasi-Deybuksky Selsoviet, Kayakentsky District, Republic of Dagestan, Russia. The population was 435 as of 2010.
Nationalities Dargins live there.
Geography Deybuk is located 8 km southwest of Novokayakent (the district's administrative centre) by road. Kishcha and Meusisha are the nearest rural localities.Расстояние от Дейбука до Новокаякента 80 км
References