The impact of global monetary policy on developing country economies has a significant and complex presence. In recent decades, developing countries have faced increasingly diverse challenges due to changes in monetary policies implemented by developed countries, especially the United States and the Eurozone. Policies such as changes in interest rates, quantitative easing, and market intervention must be understood to assess their impact on the economies of these countries. Coordination of global monetary policy, especially by the Federal Reserve, often leads to rapid capital inflows and outflows. When interest rates in developed countries fall, investors tend to look for higher yields in developing countries. This creates capital flows that can drive short-term economic growth. However, when interest rates rise, developing countries experience capital outflows that can lead to currency depreciation, inflation, and instability. The impact of these capital flows is very diverse. First, inflation is one of the biggest consequences. When investors withdraw capital, the currency exchange rate can fall, resulting in the price of imported goods becoming more expensive. In addition, countries that depend on energy imports will feel the impact more severely, potentially causing an energy crisis and triggering further inflation. Second, currency fluctuations caused by changes in global monetary policy often disrupt developing countries’ fiscal projections. Many governments have been forced to make painful budget adjustments, such as public spending cuts that could impact investment in infrastructure and social services. In addition, the uncertainty created by global monetary policy also affects investor confidence. When there is high volatility, domestic and foreign investors tend to delay their investment decisions, which has a direct impact on long-term economic growth. Turning to the social aspect, global monetary policy can exacerbate social inequality. With some industrial sectors recovering more quickly from the impact of capital flows, many workers in more vulnerable sectors could lose their jobs. This triggers public dissatisfaction and increases social risks that have the potential to lead to political instability. In some cases, developing countries can use their monetary policies strategically to mitigate the impact of global policies. Building sufficient foreign exchange reserves, intervening in foreign exchange markets, and strengthening the macroeconomic framework are steps that can help reduce the risk of dependence on global capital flows. Overall, the impact of global monetary policy on developing country economies shows that international economic relations are highly interconnected. Developing countries must develop comprehensive policies to address the challenges emerging from these global dynamics, capitalize on existing opportunities, and build stronger economic resilience for the future.