| Official Name: | Sarnitsa Municipality |
| Native Name: | Община Сърница |
| Native Name Lang: | bg |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Pazardzhik Province |
| Population Total: | 4617 |
| Population Density Km2: | auto |
| Coordinates: | 41.7333°N 26°W |
| Settlement Type: | Municipality |
| Area Total Km2: | 198.59 |
| Image Map1: | Map of Sarnitsa municipality (Pazardzhik Province).png |
Sarnitsa Municipality (Bulgarian: Община Сърница) is one of the municipalities located in Pazardzhik Province. Its administrative centre is Sarnitsa. The municipality was established on 1 January 2015.[1]
The municipality is located in the southern portion of the province. The total area is 198.59km2.[2] It occupies an elongated area that is 34 km long from northwest to southeast and 6 to 8 km in width. It borders Velingrad Municipality in the north and Batak Municipality in the east. The Dospat Municipality of Smolyan Province is to the south-east, while Garmen and Satovcha municipalities of Blagoevgrad Province adjoin the region in the south-west.
There are only three communities with a permanent population: Sarnitsa, Pobit Kamak and Medeni Polyani, with only Sarnitsa being a town.
The population is around 4,617.[3] The majority of the people in the municipality are Bulgarian-speaking Muslims.[4]