In this article I present a positive ontology of 'race'. Toward this end, I discuss metaphysical pluralism and review the theories of Ian Hacking, John Dupre and Root. Working within Root's framework, I describe the conditions under which a constructed kind like 'race' would be real. I contend these conditions are currently satisfied in the United States. Given the social presence and impact of 'race' and the unique way 'race' operates at differing sites, I will argue that it is site-specific, it is socially constructed, and it is real. Key Words: human kinds metaphysical pluralism philosophy of race promiscuous realism race race theory racial realism.