Aspö is an island in the Blekinge archipelago of southeast Sweden. It constitutes a parish in Medelstad Hundred, Karlskrona Municipality, Blekinge County. It contains the settlement of Drottningskär and a 17th-century naval citadel of the same name. The island has about 460 permanent residents, with many more visitors staying in summer.[1] A ferry for vehicles and passengers runs hourly, free of charge, between Aspö and Karlskrona.[2]