Are Latinos in the United States seen (or destined to be seen) as a racial group? As popularly understood, a racial group is distinguished by two features: first, its membership does not overlap significantly with that of other groups that are understood to be racial, like Whites or Blacks. Second, its members can be recognized from physical traits––presumed markers of an innate biology. On the one hand, the US Census is adopting a question format that treats the “Hispanic/Latino” category as a racial one, a decision based, in part, on how self-identified Latinos themselves identify in terms of race. On the other hand, recent research uncovers substantial ambiguity around who is classified as Latino. This paper explores the racialization of the Latino category using an original survey that captures how people who self-identify as Latino are classified by a race-stratified sample of Americans. Results indicate that a sizable segment of people who self-identify Latino alone (not as Latino and White or as Latino and Black) and whose physical traits conform to a somatic norm characterized by medium skin tone, medium lips, and straight hair are consistently classified as Latino and only Latino. Our findings suggest that the Latino category is coming to be understood as a racial category but also that this category may eventually exclude many of the people who currently identify as Latino.