The Vlachs (Romanian: rumâń; Serbian: Власи, romanized: Vlasi) are a Romanian-speaking recognized ethnic minority in Serbia. According to data from the 2022 census, there were 21,013 Vlachs living in Serbia (constituting 0.3% of the total population), although unofficial estimates by members of the community put the number of Vlachs or speakers of Romanian in eastern Serbia to be between 150,000 and 300,000. They are concentrated in eastern Serbia, mainly within the Timok Valley.
The Vlachs are characterized by a culture that has preserved archaic and ancient elements in matters such as language or customs. Although ethnographically and linguistically related to the Romanians, within the Vlach community there are divergences on whether or not they belong to the Romanian ethnicity and whether or not their minority should be amalgamated with the Romanian ethnic minority in Serbia.