This chapter examines the case of Hong Kong from the perspective of internal self-determination. It provides two distinct images of Hong Kong: as a Special Administrative Region (SAR) of China which enjoys a high degree of autonomy (and therefore, internal self-determination); and as an entity which is struggling to achieve universal suffrage (i.e. denial of internal self-determination). The chapter argues that in the struggle for universal suffrage, the principle and language of internal self-determination can play a mixed role. It can help Hong Kong people to articulate their demands for democracy; but it can also heighten tensions with China. Whatever the case may be, engaging with the concept of internal self-determination will be unavoidable.