Smalyavichy or Smolevichi is a town in Minsk Region, in central Belarus. It serves as the administrative center of Smalyavichy District. It is situated on the Plisa River (a tributary of the Berezina). As of 2025, it has a population of 23,721.
In the 16th century it was a possession of Grand Hetman of Lithuania Konstanty Ostrogski. Later on, it passed from the Ostrogski to the Radziwià Âà  family. During the French invasion of Russia, in 1812, military warehouses were located in the town.
During World War II, the town was occupied by Nazi Germany from 1941 to 1944.
The local football club is the Smolevichi, playing in the Belarusian Premier League. Its home ground is the Ozyorny Stadium.