The paper investigates the role and future of short food chains supplying cities in developing countries. It is based on a conceptual framework on proximity (mostly used in developed countries and tested here in developing contexts), surveys in Vietnam on the organisation of vegetable chains supplying urban markets, as well as surveys in Africa and secondary empirical data. In line with the predictions of spatial economics, short food chains are dominant in the supply of perishable produce, e.g. leafy vegetables in Vietnam, as in a number of cities of Africa and Asia. There are instances where farmers and consumers are active in taking advantage of regular interactions, especially to promote food quality and safety, in a context of growing concerns on the part of consumers for their health. The paper concludes with some features of short food chains in Asia and Africa.