Frederikshavn is a Danish town in Frederikshavn municipality, Region Nordjylland, on the northeast coast of the Jutland peninsula in northern Denmark. Its name translates to "Frederik's harbor". It was originally named Fladstrand. The town has a population of 23,124 (1 January 2020), and is an important traffic portal with its ferry connections to Gothenburg in Sweden. The town is well known for fishing and its fishing and industrial harbours. Frederikshavn's oldest building, Fiskerklyngen, is originally from the mid-16th century, but the houses now there are from 18th–19th centuries.