This study analyses global economic cycles and their impact on international finance. Economic cycles—characterized by phases of expansion, peak, contraction, and recovery— play a crucial role in shaping financial markets, capital flows, exchange rates, and investment decisions across countries. The paper examines how fluctuations in global economic activity influence international financial systems, including banking stability, foreign direct investment (FDI), and cross-border portfolio flows. It also evaluates the role of macroeconomic policies and global financial institutions in mitigating adverse effects during downturns. The study finds that synchronized global cycles amplify financial volatility, while diversified economic structures and sound policy frameworks can enhance resilience. The research contributes to understanding the interconnectedness of global economies and provides insights for policymakers and investors to better navigate economic fluctuations.