The idea of an East Asian community has emerged in recent years. There are three pillars that support such a community: a politico-security pillar, an economic pillar, and a socio-cultural pillar. The last one concerns a sense of an East Asian identity that people of East Asia may have. This article attempts to cast light on such a socio-cultural pillar through a close reading of Kant's argument on cosmopolitan right. The article concludes by suggesting implications that my reading of Kant has for thinking about an East Asian community.