The goal of public health is to maximise health, and to promote the common good. These two assumptions frequently give rise to claims that public health is founded on utilitarian or communitarian ethics, respectively. In this paper, these claims are critically examined and rejected. It is neither plausible to assume utilitarian goals in public health nor to propose a utilitarian account of public health ethics. The idea of public health as health-related utilitarianism rests on a misconception of utilitarian ethics. Once this misconception is realised, the seeming appeal of public health to utilitarianism quickly fades. Communitarianism, in turn, fails to serve as a comprehensive and systematic ethical account. Some moderate appeals to more communal spirit for public health are well taken, although not exclusive communitarian. Other more extreme proposals of communitarians, e.g. to exercise public-health police power and public-health paternalism, are to be taken with great care. Thus, it is concluded that there is a need for an ethical foundation of public health different from both utilitarianism and communitarianism.