Coordinates: 42°48′36.53″N 22°17′56.43″E / 42.8101472°N 22.2990083°E / 42.8101472; 22.2990083

Crna Trava (Serbian Cyrillic: Црна Трава, Serbian pronunciation: [tsr̩̂ːnaː trǎːʋa]) is a village and municipality located in the Jablanica District of Serbia. According to 2011 census, the population of the village is 452 inhabitants, while population of the municipality is 1,661. This is the poorest municipality in the country.

The name of the village in Serbian translates to Black Grass. The origin of the name dates back to 1389, when Battle of Kosovo took place. A Serbian army unit, composed of Serbian archers and cavaliers, decided to take a rest on a grass field while travelling to the battlefield. Since the flowers and other herbs covering the field were highly poisonous, the soldiers became intoxicated, thereby they did not wake up on time for the battle. Realizing that fact, they cursed the grass that poisoned them, branding it "black" grass.

Crna Trava, along with the rest of Vlasina region, suffers from heavy depopulation, chiefly for economic reasons. It can be seen from the census data from 1953 to 2002: