This article explores the global imagining of China as a site of Islamization at the turn of the twentieth century. While previous scholarship examined this fantasy-making among European Orientalists and Christian missionaries, we put the writings of the latter in dialogue with other (Arabic and Ottoman Turkish) discursive nodes and networks in the Middle East, as well as those of Chinese Muslims, highlighting the production and co-constitution of this narrative on a global scale. We argue that by the late nineteenth century the birth and spread of this narrative was tied to the growing acceptance of a particular conception of religion as a classificatory framework wherein ‘world religions’, as bywords for separate civilizations, were locked in intense Darwinian competition with one another. Entangled with narrational processes like the invention of global religions and the construction of the Muslim world, the vision of an Islamized China became a fertile (and long-lived) battleground for a wide range of imperial anxieties, anti-colonial aspirations, and minority counterclaims, many of which we explore in this article.