| Official Name: | Deybuk |
| Native Name: | Дейбук ДейбукI |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Dagestan#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Republic of Dagestan |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Kayakentsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 42.2°N 78°W[1] |
Deybuk (Russian: Дейбук; 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.[2]
Dargins live there.
Deybuk is located 8 km southwest of Novokayakent (the district's administrative centre) by road. Kishcha and Meusisha are the nearest rural localities.[3]