The EU’s openness towards stakeholders is central to the legitimacy of its law-making. With the rapid globalisation of EU legislative activities, openness towards actors from third countries requires analysis. With reference to the notion of ‘lobbying’, this article outlines a framework for identifying the role of third country actors in EU policy processes. The two arguments brought forward suggest that third country lobbying is facilitated by the openness of Union law- and policy-making, and that third country actors contribute to EU decision-making at all stages. The article concludes with a set of questions that third country lobbying raises concerning the EU’s legitimate law-making authority in Europe and beyond.