Semiluki is a town located in Russia and serves as the administrative center of the Semiluksky District. It is situated within the Voronezh Oblast region on the banks of the Don River.
According to census data, the population of the town has shown steady growth over several decades. The 2021 census recorded a population of 27,938, following figures of 26,023 in 2010, 25,559 in 2002, and 21,650 during the 1989 Soviet census.