In light of recent attempts to determine the political role and status of corporations I discuss the normative implications of considering multinational corporations (MNCs) as political actors. I posit that corporations do indeed have a new political role in a connected world, in particular with respect to matters of human rights, social and environmental justice. We thus find a growing need for ethical and political knowledge to inform and guide the emerging political co-responsibility of MNCs. I draw on the rich (...) literature in cosmopolitanism to seek such guidance and discuss some of the implications that a cosmopolitan perspective implies. (shrink)