In this chapter, the codification of administrative law in Sweden is presented. As will be shown, Swedish administrative law has a long history and is well developed in terms of codification. It may be stated already at this point that the Swedish administrative model differs from those in other countries dealt with in this volume. The differences are most significant in relation to the Anglo-Saxon countries, although some common, central administrative law principles can be found, such as the principles of legality, legal certainty and equality or objectivity. From a European perspective, European Union (EU) law has had a major impact, meaning that several principles of good administration, which are seen in the contributions from other European countries, are also included in Swedish law. Principles of good administration emanating from the European Convention on Human Rights (ECHR), as interpreted by the European Court of Human Rights, as well as other documents from the Council of Europe, have also affected the national administrative orders. The European Court of Human Rights draws inspiration from legal 242orders beyond Europe, both international law and domestic law, which also trickle down into the legal orders of the Member States. In this context, it can be noted that Sweden belongs to the East Nordic public law system together with Finland, including Åland. This system differs from that in West Nordic legislation seen in Denmark, including the Faroe Islands, and Greenland, Iceland and Norway.