Foreign policy analysis (FPA) and paradiplomacy have natural affinities, including a concern for the diversity of domestic agents and their impact on a country’s foreign policy behaviour. There has been little theoretical and empirical interaction between these two areas of scholarship, however. This chapter seeks to identify pathways to correct this state of affairs. It argues that FPA should use its theoretical toolbox and the extensive empirical evidence uncovered by paradiplomacy scholars to outline the role of substate governments in the national foreign policy-making process and the role of such entities as autonomous diplomatic agents. By doing so, foreign policy scholars can claim a central analytic location in IR by broadening their focus beyond military security issues, overcoming the state-centrism that continues to dominate the field, and building more bridges towards disciplines like political geography and towards policy-makers.