This review of the literature offers an analysis of ways in which the theory and pedagogical concepts of cosmopolitanism have been employed across research in adult education contexts. Twenty-nine research articles and dissertations on cosmopolitanism and adult education, conducted in various geographical locations and adult education contexts, were selected for the analysis. The article presents how researchers define and theorize cosmopolitanism, the purposes for using cosmopolitanism tenets in the studies, and conclusions that the findings proffer about cosmopolitanism for adult learning, teaching, and continuing and professional development. The review concludes with implications for practice and future research.