This chapter deals with the Nordic countries of Denmark, Finland, Norway, and Sweden. For many years these four countries were neatly split into a dichotomy, with relatively strong populist radical right parties in Denmark and Norway and less successful counterparts in Finland and Sweden. Since about 2010, however, the populist radical right now has a firmly established foothold in all four countries. In addition, populist radical right parties have moved from isolation to acceptance in three of the studied countries, entering government in Norway and Finland and exerting considerable policy influence in Denmark. Exploring this development, the chapter deals with the origins, ideologies, electoral support, and political impact of the main Nordic populist radical right parties. It is argued that they will not disappear from the political center stage, and that the Swedish radical right can be expected to eventually obtain a position of legitimacy and influence.