This article explores the role of health diplomacy in promoting the right to health. It first looks at the historical trajectory of the right to
health as it evolves and intersects with state and human and health security. Second, it analyzes the definitions and roles of health diplomacy. It argues that health diplomacy is undergoing a cycle of (re)invention and innovation, bringing in both new and traditional actors. Yet it points out a gap in the subject of health diplomacy, asking what is the right to health, and what does its definition mean for the (changing) role of health diplomacy? It concludes by offering initial insight into what health diplomacy might be in the nearer future.