This research aimed to comprehensively examine the essential role carried out by civil society organizations in mediating conflicts that inevitably arose amongst the culturally and ethnically diverse refugee population who had sought refuge at Nyumanzi refugee settlement located in the Kiryandongo District of Midwestern Uganda for over three decades, housing over forty-five thousand refugees from countries including Sudan, South Sudan, the Democratic Republic of the Congo, and Burundi, where prolonged violence, political instability, and human rights crises had forced millions to flee their homelands in search of safety and peace. Given the protracted nature of displacement and scarce resources within the settlement that exacerbated underlying prejudices, effective preventative mechanisms implemented by frontline grassroots organizations were crucial for maintaining stability. Through employing a mixed methods sequential exploratory research design combining both qualitative and quantitative data collection and analysis techniques, this study sought to gain multifaceted insights into refugees' perceptions of how well civil society organizations were managing the inevitable tensions that arose through open-ended interviews with twenty key stakeholders and focused group discussions with forty-eight refugees themselves while also conducting a large-scale survey of three hundred eighty-four refugees, determined using Krejcie and Morgan’s sample size table, to determine attitudes across the population for enhanced generalizability. Statistical analysis found that trust in organizations, accessibility of services, responsiveness to needs, participation in decision-making and perceived fairness of conflict resolution all positively impacted perceptions of effectiveness. The study then aimed to identify existing gaps or weaknesses in the approach of these organizations through statistically analyzing respondents' experiences using logistic regressions, finding lack of training, insufficient resources, poor communication and more significantly associated with challenges. Finally, disseminating the actionable findings to the appropriate governmental and humanitarian actors supporting the settlement aimed to optimize coordination of efforts and resources in order to maximize the conflict resolution and peacebuilding impact of community-led civil society interventions for the sustained well-being of this vulnerable population.