Public health ethics is emerging as a new field of inquiry, distinct not only from public health law, but also from traditional medical ethics and research ethics. Public health professional and scholarly attention is focusing on ways that ethical analysis and a new public health code of ethics can be a resource for health professionals working in the field. This article provides a preliminary exploration of the ethical issues faced by public health professionals in day-to-day practice and of the type of ethics education and support they believe may be helpful.