This presentation introduces KIMO Sweden, its municipal membership and its work to protect marine and coastal environments. It describes the network’s focus on reducing pollution, improving marine awareness and supporting practical action by municipalities. KIMO Sweden’s work includes marine litter, microplastics, pollution prevention, biodiversity and issues affecting coastal waters, together with collaboration and knowledge sharing between member municipalities. The resource provides an accessible overview of the national network and the role of municipalities in addressing marine environmental pressures. It can be used as background information for stakeholders seeking to understand KIMO Sweden’s purpose, activities and contribution to cleaner seas.