Arctic marine ecosystems are among the most productive and most vulnerable in the world, both from an economic and ecological perspective of growing accessibility. The complexity of Arctic marine ecosystems and their location poses challenges for management, valuation, and the establishment of sound policy to protect them. This special issue of Temanord presents papers from a workshop devoted to this topic. In October 2013, a group of multidisciplinary experts on marine invasive species and the Arctic came together in Esbjerg, DK for a two-day workshop titled: “Marine Invasive Species in the Arctic: Management Issues.” Attendees of the workshop came from academic, governmental and scientific institutions in Denmark and the Faroe Islands, Sweden, Norway, Finland, Iceland, Canada, and the United States. This volume presents papers based on the presentations of the workshop speakers.