This chapter examines diplomacy and bad followers. The first section begins by looking at the ways in which followers can be thought of as bad: bad in terms of the moral content of their character, bad in terms of their competence, and bad in terms of the consequences of what they do for others. It then examines how bad followers are thought to make international relations worse than they need to be, the problems which bad followers have traditionally posed for diplomacy, and how diplomacy has tried to address them through ignoring, containing, and exploiting bad followers. The second section examines the rising importance for international relations of the bad follower problem produced by increasingly differentiated publics in terms of elites, masses, publics, groups, and individuals who engage in different forms of people-to-people diplomacy. It examines the rise of hyphenated-diplomacies and the way in which more and more people and groups engage in the key functions of diplomacy for themselves. The third section of the chapter describes responses of increasingly disaggregated states to these developments which often take the form of public diplomacy. It examines the different types of public diplomacy, their changing character, and the limitations they confront in attempting to contain and exploit the bad followers people worry about when they think about international relations. The final section addresses the rise of populism and how a world in which all relations are thought to be potentially diplomatic and everyone is thought to be potentially a diplomat seems to have produced bad followers of a very traditional type. It then makes an argument for how the problem of bad followers can be eased by making followers into diplomats – that is, familiarizing them with the practice of diplomacy – its way of seeing the world and its commitments and priorities, as these were set out above in the first section of the book.