Cuyuni-Mazaruni
| Cuyuni-Mazaruni Region 7 | |
|---|---|
| Administrative Region | |
| Map of Guyana showing Cuyuni-Mazaruni region | |
| Country | Guyana Claimed by Venezuela | 
| Regional Capital | Bartica | 
| Area | |
|  • Total | 47,213 km2 (18,229 sq mi) | 
| Population  (2012 census) | |
|  • Total | 20,280 | 
| • Density | 0.43/km2 (1.1/sq mi) | 
Cuyuni-Mazaruni (Region 7) is a region of Guyana. Its capital is Bartica, with villages including Issano, Kartabo, Kamarang, and Imbaimadai.
It borders the regions of Barima-Waini, Essequibo Islands-West Demerara and Pomeroon-Supenaam to the north, the region of Upper Demerara-Berbice to the east, the region of Potaro-Siparuni, and borders the Brazilian state of Roraima to the south.
It covers an area of 47,213 km². Before the 1980 administrative reform most of the area belonged to the Mazaruni-Potaro district.