Local elections in Serbia were held on 28 March 2021 in the municipalities of Zaječar, Kosjerić and Preševo, and on 17 October in Mionica and Negotin. The ruling Serbian Progressive Party (SNS) won a majority of seats in the city assemblies of Zaječar and Kosjerić, while the Alternative for Changes (APN) led by Shqiprim Arifi won a majority of seats in Preševo. Some non-governmental organizations have reported electoral irregularities in Zaječar and Kosjerić, including physical attacks to some journalists and ballot leaders; no irregularities were reported in Preševo.