This paper examines the impact of development, including the impact of government and donor programmes, on ethnic minorities and indigenous peoples in Southeast Asia. Through an examination of government policy, it considers arguments that mainstream development strategies tend to generate conflicts between states and ethnic minorities and that such strategies are, at times, ethnocidal in their destructive effects on the latter. In looking at more recent government policy in the region, it considers the concept of ethnodevelopment (ie development policies that are sensitive to the needs of ethnic minorities and indigenous peoples and where possible controlled by them), and assesses the extent to which such a pattern of development is emerging in the region. Since the late 1980s, it argues, governments across the region have made greater efforts to acknowledge the distinct identities of both ethnic minorities and indigenous peoples, while donors have begun to fund projects to address their needs. In many cases, these initiatives have brought tangible benefits to the groups concerned. Yet in other respects progress to date has been modest and ethnodevelopment, the paper argues, remains confined to a limited number of initiatives in the context of a broader pattern of disadvantage and domination.