The concept of citizenship has been evolving historically, changing its meaning and value. Particularly, citizenship transforms against the backdrop of globalisation, giving rise to the discussions on global citizenship. Aiming to answer the question of whether EU citizenship can be seen as global citizenship, this chapter looks into the notion of citizenship, particularly referring to the Nottebohm case and Hannah Arendt. After that, the chapter investigates the meaning of global citizenship as it is construed in scholarly thinking. Pointing out the lack of a common understanding in the domain of global citizenship, the chapter suggests that Union citizenship might be the most advanced prototype of global citizenship.