| Official Name: | Duldug |
| Native Name: | Дулдуг |
| 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: | Agulsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 41.7667°N 87°W[1] |
Duldug (Russian: links=no|Дулдуг) is a rural locality (a selo) and the administrative centre of Burshagsky Selsoviet, Agulsky District, Republic of Dagestan, Russia. The population was 542 as of 2010.[2]
Duldug is located 8 km east of Tpig (the district's administrative centre) by road. Goa is the nearest rural locality.[3]