The importance of good leadership is becoming increasingly apparent within health care. This paper reviews evidence which shows that it has effects, not only on financial management, but on the quality of care provided. Some theories of leadership are discussed, primarily in terms of how different types of leaders might affect quality in different ways, including the effects that they might have on the stress or wellbeing of their staff which, in turn, is related to the quality of care produced. Finally, the conflicts shown in terms of leadership within the context of health care are discussed, leading to the conclusion that development programmes must be specially tailored to address the complexities of this arena.