This thesis examines the role of international organisations in disability mainstreaming policies in Turkey. Turkey is a particularly interesting case study, as it combines traditional values coupled with ambitions to be an internationally respected European state. International organisations include the European Union, the World Bank, the International Labour Organization, the World Health Organization, the United Nations Educational, Scientific and Cultural Organization, the United Nations Development Programme, the United Nations Children’s Fund and Organization of Islamic Cooperation. A multidisciplinary approach was taken which involved social policy, history, disability studies, international relations, and politics. The research used a case study based on analysis of 275 policy documents, 47 semi-structured and two focus group interviews. The participants have all been directly involved in decision-making processes at international and/or local level. The thesis argues that disability mainstreaming is partial and selective as a result of the interaction between the traditional values and structures in Turkey and the aims and practices of international organisations.