In Argentina, parents must register their children at the Civil Registry to receive a national identification card, choosing their child's name from a list maintained by provincial Civil Registry offices. This process regulates all citizens, but it is particularly onerous for indigenous parents who wish to give their child an indigenous name. In tracing the letter and practice of the law and responses to the law, I argue that the regulation of names is a political process with racial and gender assumptions built into it. These assumptions translate into exclusionary implications for membership in national identity. For indigenous people in Argentina, this is particularly problematic, as they are already largely invisible to the national body. Although indigenous people are challenging aspects of the law they are not challenging the very premise of the law—that the state has the right to control their access to citizenship through a law regulating children's names. Finally, the successes of indigenous parents in using an indigenous name has the unintended consequence of turning indigenous names into cultural commodities, thus diminishing the validity of indigenous political critiques of the law.