This chapter seeks to examine key Swedish governmental institutions and parliamentary arrangements from the perspective of fusion. It is broadly split into three parts. The first section explains how elements of the fusion perspective can be applied to such institutional dimensions and discusses notions of institutional fusion. The second section explores the Europeanisation and institutional fusion of Swedish governmental structures, as evidenced by the horizontal coordination taking place between Swedish governmental institutions involved in national EU policy, as well as the vertical coordination between the national and supranational levels, such as the attitudes of national officials in EU committees and the role of the Swedish Permanent Representation to the EC in Brussels. The final section explores the influence of European perspectives on the Swedish Parliament (Riksdag).