Xenophobic violence remains a major socio-political challenge in post-apartheid South Africa, despite the country's constitutional commitment to human rights, equality, and social justice. African migrants continue to face discrimination, exclusion, and periodic outbreaks of violence, raising concerns about migration governance, human security, and regional integration. This study examines xenophobic violence in South Africa from an International Relations perspective, exploring its causes, manifestations, and implications for migrants, host communities, and the broader African continent. The analysis is guided by Human Security Theory, Securitization Theory, and Social Identity Theory, which collectively provide a framework for understanding the relationship between migration, identity, security, and social exclusion. The study adopts a qualitative research approach based on secondary data drawn from academic literature, policy documents, government reports, media sources, and publications by international organizations. Findings indicate that xenophobic violence is driven by multiple factors, including unemployment, poverty, socio-economic inequality, weak governance, migration securitization, political rhetoric, misinformation, and contested notions of citizenship and belonging. The study further reveals that xenophobia undermines migrants' personal, economic, community, and political security while weakening South Africa's commitment to Pan-Africanism, regional integration, and continental cooperation. The study concludes that addressing xenophobic violence requires moving beyond reactive security measures toward more comprehensive and inclusive strategies that promote social cohesion, migrant protection, intercultural dialogue, sustainable development, and effective regional migration governance. Such an approach is essential for strengthening human security, fostering regional stability, and advancing South Africa's role in African integration and development