Race as a concept has had a fraught role in the history of Classics, woven into its formation as an academic discipline. While the texts and artefacts of the ancient Mediterranean world provide complex understandings of what race might mean and how it might operate, they have also provided fodder for modern racial ideologies. This Companion offers a wide-ranging and groundbreaking overview of 'race' and 'racism' in ancient Mediterranean cultures as well as in the formation of Classics as a discipline. Through twenty-four chapters written by a team of international scholars, it clarifies the terms and concepts that are central to contemporary theories of race and explores the extent to which they can be applied to the study of the ancient Mediterranean world, in and beyond Greece and Rome. It also showcases various concrete examples of how Classics has been shaped by the intertwined histories of race and colonialism.