This article explores challenges for and the development of civil society engagement and stakeholder representation, transparency, and accountability measures in the European Union, with a specific focus on health policy. The stance of the European Union on stakeholder participation within reform debates of the World Health Organization (WHO) is also considered, along with EU lessons for multi-stakeholders at the WHO. The European Commission has developed a number of measures for stakeholder engagement and transparency; however, the European Union has been prone to lobbying interests and has found difficulty in leading and making accountable the private sector when it comes to achieving its own health policy goals. The strong influence of corporate lobbyists on the European Union has come to light, with concerns about a lack of transparency and accountability in decision-making processes. While the WHO could learn from the European Union in terms of its strategies for stakeholder engagement, it could also heed some of the important lessons for the European Union when it comes to working with a broad range of stakeholders.