The Danish monitoring program 2011–2015 documents the status and development of the marine environment compromising a description of the relationship between nutrient supply (nitrogen and phosphorous) and secondary biological effects and further elucidates the link between release, concentration, and effect of hazardous substances. Additionally, oxygen depletion in Danish marine waters has special focus owing to both public and political awareness and as a proxy for nutrient enrichment. Through monitoring activities a comprehensive database has been established over decades and gained knowledge has formed the scientifically basis for management and environmental policy of Danish marine areas. The Danish monitoring program is organized to meet both national and international obligations and is to a greater extent than previously aligned with demands of the international environmental legislation focusing on the Water Framework Directive, the Habitats Directive, the Shellfish Water Directive, the Marine Strategy Framework Directive and various international conventions (in particular OSPAR and HELCOM). This presentation outlines purpose, scope and elements of the Danish marine monitoring program i.e. selected parameters, sampling frequencies and number and location of stations. Further, necessary adjustments to fulfil the monitoring requirements of the Marine Strategy Framework Directive are discussed.