Oskarshamn is a coastal city and the seat of Oskarshamn Municipality, Kalmar County, Sweden with 17,258 inhabitants in 2010. ==History== The location of Oskarshamn was known as Döderhultsvik since the Medieval age. In 1645, the city of Kalmar, to the south, made a request to the Royal Government on holding commerce in the bay there, which was gra...