This paper proposes, elaborates and defends a principle of genetic equity. In doing so it articulates, explains and justifies what might be meant by the concept of 'human dignity' in a way that is clear, defensible and consistent with, but by no means the same as, the plethora of appeals to human dignity found in contemporary bioethics, and more particularly in international instruments on bioethics. We propose the following principle of genetic equity: humans are born equal; they are entitled to freedom from discrimination and equality of opportunity to flourish; genetic information may not be used to limit that equality.