The prolonged humanitarian crisis in Northeast Nigeria, fueled by the Boko Haram insurgency has caused the displacement of hundreds of thousands of people. IDP camps designed as places of safety, have instead become environments where women and girls face heightened risks of gender-based violence (GBV). This article assessed the socio-cultural factors Influencing gender-based violence in IDP camps in Adamawa state, Nigeria. The research was guided by one objective and one research question. Employing mixed-methods approach, combining both qualitative and quantitative methods of data collection, the study collected quantitative data through a structured questionnaire administered to 460 IDPs across six camps, selected via stratified random sampling and complemented by qualitative data from 40 Key Informant Interviews and Focus Group Discussions, using structured interview guides. The qualitative data were analyzed using mean and standard deviation computed with SPSS version 26 while the qualitative data were thematically analyzed using NVivo. The finding revealed that the collapse of community protection structures, entrenched patriarchal norms, and a pervasive culture of impunity as the factors responsible for the prevalent of Gender-based violence in IDP camps. The findings also indicated that GBV is a systemic feature of the displacement context in Adamawa, where intersecting vulnerabilities of gender, poverty, and displacement status converge. The study concluded that the cycle of violence is sustained by structural failures and deeply ingrained socio-cultural norms. Consequently, it recommended a multi-faceted response centered on implementing integrated livelihood and economic empowerment programmes.