The essence of any citizenship category is the rights and duties associated with it. In the case of Union citizenship, determining its content precisely is not easy. This chapter looks into the rights and duties that come with the EU citizenship status. It first starts with rights, providing some terminological mapping with regard to human rights, fundamental rights, and citizens’ rights. The chapter then focuses on the broad and narrow reading of EU citizenship rights. After that, the chapter proceeds to the analysis of the issue of the absence of clearly defined duties that EU citizens have to fulfil, paying some attention to whether it is desirable to associate any duties with the Union citizenship status.