Although social policy and development studies are now well-established interdisciplinary fields, they remain distinct and there is little sharing of ideas and information between them. Because of their common interest in promoting social well-being, this chapter makes a plea for scholars in these fields to collaborate more closely. It contracts social policy and development studies and discusses their historical evolution and current features. It points out that scholars in both fields have undertaken extensive research into social welfare in the Global South – albeit from different perspectives. Social policy has been preoccupied with state provision and the use of typologies to categorize national welfare systems, while development studies has focused on the role of multiple providers and linked the study of welfare to economic development. Nevertheless, their common interest in issues of welfare and development is conducive to forging a partnership which may ultimately foster a synthesis of their diverse perspectives.