English is a lingua franca of the world, and therefore English language teaching is an ideal means for global citizenship education. This paper aims to review existing theories and to make recommendations on second language teaching for global citizenship education. A Kantian perspective on global citizenships is adopted. Results of discussions suggest that Global Englishes Language Teaching (GELT) offers a way out to the dilemma of inequality caused by native-speakerism and equality in global citizenship. Together with the notion of Linguistic Imperialism, GELT enables the blending of Kant's cosmopolitan right and hospitality right which have been neglected in literature.