This study examined the role of the African Union (AU) in human rights protection in Nigeria
between 2015 and 2025, with a particular focus on child trafficking and the protection of
vulnerable children. Using documentary research methodology, the study relied on secondary
sources such as academic literature, AU policy documents, government reports, and relevant
publications from international organizations. The study was anchored on the Structural
Functionalist Theory, which explains how institutions work together to maintain social stability
and address dysfunctions such as child trafficking. Findings revealed that the African Union has
made significant contributions to strengthening Nigeria’s human rights framework through
regional legal instruments, policy advocacy, institutional support, capacity building, and
partnerships with agencies such as NAPTIP, UNICEF, and IOM. These interventions have
contributed to legal reforms, improved coordination among institutions, public awareness
campaigns, and rehabilitation programmes for trafficked children. However, child trafficking
remains widespread due to persistent challenges such as poverty, insecurity, corruption, weak
enforcement mechanisms, and inadequate institutional coordination. The study also found that
gaps between policy formulation and implementation continue to limit the effectiveness of both AU
and national responses. The study concludes that while the African Union has played an important
role in promoting human rights protection in Nigeria, its impact is constrained by weak
enforcement structures and limited political commitment at the national level. It therefore
recommends stronger institutional capacity, improved regional and national collaboration,
enhanced enforcement mechanisms, and socio-economic interventions aimed at addressing the
root causes of child trafficking.