The main purpose of the Danish National Biobank is to give scientists from Denmark and abroad overview and access to more than 25 million biological samples in both existing and future collections, making The Danish National Biobank one of the world’s largest research biobanks. Scientists will have the possibility to link information about biological samples from individuals with the large amount of information contained in Danish administrative registries. and a unique resource that will take Danish biomedical research another step forward. The Danish National Biobank initiative has 3 pillars:1. A biobank registry with detailed information about the samples available in the Danish health system and in the large, participating research biobanks.2. A large, national biobank3. A coordinating centre for the biobank initiativeThe Danish National Biobank makes it possible to take advantage of the great potential of the many biological specimens collected by the public health sector. Projects approved by the Scientific Ethics Committee and the Danish Data Protection Agency will obtain permission to link biological material from one individual with the great amount of further information to be found in the national registers within e.g. public health.