Until recently, international education has existed at the margins of educational research. However, in the current context of globalization, international education has moved closer to the center of educational research throughout the world. In this article, the authors identify, describe, and analyze six distinct research approaches to international education: comparative and international education, internationalization of higher education, international schools, international research on teaching and teacher education, internationalization of K-12 education, and globalization of education. Within each approach, the authors discuss the historical context and the global political, economic, social, and cultural shifts that have shaped the research approach; map the major research trajectories that have developed; discuss the audience and research community; and analyze strengths and weaknesses. The authors conclude with a discussion of emergent trends within research in international education. (Contains 15 notes.)