South Bohemian Region is an administrative unit (kraj) of the Czech Republic, located mostly in the southern part of its historical land of Bohemia, with a small part in southwestern Moravia. The western part of the South Bohemian Region is former Prachens, a huge archaic region with distinctive features with its capital, Písek.
The region borders (from the west clockwise) the regions Plzeň, Central Bohemia, Vysocina and South Moravia. To the south it borders Austria and Germany. The total area of the region is 10 056 square kilometers which is 12,8 % of the total area of the Czech Republic. South Bohemia's population is 630 063 and with only 62 people per 1 square kilometers the region has the lowest population density in the whole country.