Abstract
In this chapter we outline ethical issues raised by the application of public health approaches to the field of mental health. We first set out some of the basics of public health ethics that are particularly relevant to mental health, with special attention to the ongoing debate over the traditional presumption of non-infringement, increased recognition of the social determinants of health, and the concept of prevention. Then we turn to the moral particularities of mental health, focusing on questions concerning coercion and treatment pressure, personal identity and sociocultural factors (including stigma), and unresolved conceptual and methodological issues in psychiatry that complicate its extension into the domain of public health.