| Official Name: | Krnjača |
| Native Name: | Крњача |
| Native Name Lang: | sr |
| Settlement Type: | Village |
| Pushpin Map: | Serbia |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | District |
| Subdivision Name1: | Zlatibor District |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Priboj |
| Unit Pref: | Metric |
| Population As Of: | 2011 |
| Population Total: | 149 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 43.4092°N 19.4044°W |
| Elevation M: | 1193 |
Krnjača (Serbian: Крњача) is a village located in the municipality of Priboj, southwestern Serbia. According to the 2011 census, the village has a population of 149 inhabitants.
Krnjača is located near the border between Serbia and Montenegrin, only 12 kilometers from the city of Pljevlja in Montenegro and 48 km from the town of Priboj. A local road which connects Plevlja to Priboj crosses the village. Before the Yugoslav wars, a mountain station was located on a hill in the part of the village known as Ravna Krnjača. On that point the altitude from sea-level is 1,220 meters.
By the 2002 census the village had 220 inhabitants, most of them declared as Serbs (219) and just one declared as Montenegrin. The population of the village is constantly declining.