This chapter discusses sociocultural factors that normalize child marriage practices and gender roles in post-independence South Sudan. The chapter examines how the sociocultural construction of gender roles and socialization can influence practices of child marriage and the psychosocial well-being of girls in an ethnic society where religious norms and group culture shape social interactions among community members. The chapter discusses cultural and religious norms that shaped shared experiences of females and males about the factors that influence child marriage in their communities. These include sociocultural and religious influences in social interactions among genders in South Sudan, specifically in the context of marriage and sexual reproductive practices. The attention is placed on social construction of the influence of cultural and religious norms from a critical social science perspective to better understand the phenomenon of child marriage in South Sudan. Therefore, this discourse emphasizes the sociocultural and religious norms that shaped the perceptions of gender roles and social interaction between males and females in South Sudan, Western Bhar El Ghazal State. The chapter highlights ethnic communities’ perceptions about the practice of child marriage and the cultural norms that society adopted to justify child marriage practices. This chapter treats the practice of child marriage in South Sudan as culturally constructed by social and religious factors and is perceived as an acceptable social norm. Further, the child marriage practice is influenced by the effects of everlasting conflict, poverty, and a high illiteracy rate in society.