Social impact evaluation is the systematic process of assessing the intended and unintended, positive and negative changes in individuals, groups, and communities associated with a policy, program, project, or organizational activity ^[1]. It examines the nature, extent, and significance of social outcomes, including changes in well-being, access to resources, social inclusion, livelihoods, and community relationships ^[1]. The evaluation may combine quantitative indicators, such as changes in employment or service access, with qualitative evidence from interviews, observations, and stakeholder experiences to understand how and why changes occur . Depending on the evaluation design, methods may include baseline and follow-up comparisons, surveys, case studies, contribution analysis, and experimental or quasi-experimental approaches ^[2]. A key consideration is whether observed outcomes can reasonably be attributed to the intervention, while accounting for contextual influences and alternative explanations. Social impact evaluation can inform decisions about resource allocation, program improvement, accountability, and the distribution of benefits and disadvantages among affected populations.