County and former province in southern Sweden, on the Baltic coast, capital Karlskrona. It lies to the northeast of Skåne, the southernmost part of Sweden.
For much of the middle ages Blekinge belonged to Denmark. Turmoil in Denmark in the later 1320s/early 1330s allowed the Swedes to gain possession, but in 1359 they lost it again. Blekinge finally became Swedish in 1658. It is the smallest of the 24 counties and 21st in population.