There have been various initiatives to improve learning outcomes in South Asia. Still, outcomes remain stubbornly resistant to improvements, at least when considered across the region. To collect and synthesize the insights about what actually works to improve learning outcomes, this paper conducts a systematic review and meta-analysis of 21 education-focused impact evaluations from South Asia, establishing a standard that includes randomized control trials and quasi-experimental designs. It finds that while there are impacts from interventions that seek to increase the demand for education in households and communities, those targeting teachers or schools and thus the supply side of the education sector are generally much more adept at improving learning outcomes. Systematic Review, Meta-Analysis, Impact Evaluations, Education Outcomes, South Asia.