The study sought to investigate the IGAD's socio-economic, political, and environmental contributions contribution to peace and stability in Mogadishu, Somalia. A qualitative case study design was used in this work. Among the 15 people who took part in the survey were IGAD officials, parliamentarians, civil society activists, political analysts, and ministers. These participants were chosen using snowball sampling and purposive sampling techniques. Data were gathered from these participants through interviews conducted with the aid of an interview guide. The findings revealed that IGAD contributed to Somalia's peace and stability by initiating mediation, and re-establishment of the Transitional Federal Government and its security capabilities It also contributed to the socio-economic development of the region by promoting regional economic integration, free movement of goods, services, and people, the creation of a conducive environment for cross-border trade, the promotion of sustainable development, the provision of social services such as schools and hospitals, and immigration issues. According to the study, it also established a drought disaster resilience sustainability program, as well as complementary programs aimed at implementing the drought resilience agenda in arid and semi-arid areas. The study also discovered that IGAD improved Somalia's access to early warning systems.