This special issue of the Journal of Human Development and Capabilities focuses on two areas of substantial and growing importance to the human development and capability approach: disability and health. The research on disability, health and the capability approach has been diverse in the topics it covers, and the conceptual frameworks and methodologies it uses, beginning over a decade and a half ago in health (Ruger 1998) and more than a decade ago in disability (Baylies 2002).1 We are pleased to share a set of articles in these two areas. ...