The use of research evidence in policymaking provides policymakers with a sound basis for policy decisions and actions. While the use of research evidence is on the rise, its evidence remains largely under-reported especially from social sciences and developing world context. This may perpetuate the prevailing myth that policymakers do not use research evidence in policy deliberations and, thus, discourage researchers, funders, and policymakers from making greater investment in producing, disseminating, and using research evidence. Using the intersection of Weiss' typology of research use and a best-evidence synthesis approach, this paper reviews and reports evidence on the use of research evidence in the policy domain from four national level studies undertaken in Africa, Asia, and Latin America. Conceptual and instrumental uses of research evidence are evident through a demand for research evidence, research-based policy products, and citations of research in policy documents. The paper broadens our understanding on the use of research evidence from developing countries context and social science research, and informs different funders, researchers, and policymakers about the potential utility of research they respectively fund and/or undertake.