Cultural diversity has become a reality that education systems in many regions across the world are faced with. Immigration, globalization, and internationalization have made it possible for people to move around, for cultures to collide, and for countries to open up to one another. This has allowed for curricula, teachers, and students to undergo a global movement toward cultural diversification. However, the impact of cultural diversity on education is not always positive and neither are the opinions about it. Different regions seem to be impacted differently by this phenomenon. Yet, empirical research on how schools around the world approach cultural diversity is still lacking. This review stems from this lack of comparative research and focuses on student cultural diversity, which is at the core of cultural diversity’s penetration into the field of education. Overall, the purpose of this review is to inform researchers working on the topic of student cultural diversity about how the latter is defined, perceived, and managed across several education systems in the world.