Krnjača is a village in the Serbian municipality of Priboj, located in south-west Serbia. Krnjaca lies near the Montenegrian border, 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 Krnjaca. On that point the altitude from sea-level is 1220 meters. By the 2002 census the village had 220 inhabitants, most of them declared as Serbs (219) and just one declared as Montenegrian. The population of the village is constantly declining.