Krupina is a town in southern central Slovakia. It is part of the Banská Bystrica Region and has approximately 8,000 inhabitants. The name …Krupina is a town in southern central Slovakia. It is part of the Banská Bystrica Region and has approximately 8,000 inhabitants. The name is probably derived from Slavic root krup. Proto-Slavic: krǫpъ, krǫpъjь – solid, strong. The root is present also in krupa – a smaller fortress, a fortified settlement, -ina is a frequent suffix. Another theory is based on the meaning "coarse". The settlement could be named after the nearby river, as the river had a rough and rocky bottom.