The role of microfinance in stimulating economic growth in rural areas has been a topic of significant interest and debate. This study aims to evaluate the impact of microfinance institutions on rural economic development across different regions, with a focus on examining the variations in outcomes due to cultural and institutional differences. Applying a mixed-methods approach, we conducted a quantitative analysis using panel data from various rural communities in Lithuania, Bangladesh, and South Korea, alongside qualitative interviews with stakeholders in these regions. Our findings indicate that, while microfinance contributes positively to economic development, the extent and nature of its impact vary significantly across different cultural and regulatory contexts. In particular, South Korea showed the highest economic growth rate attributed to microfinance interventions, while rural areas in Bangladesh exhibited substantial improvements in social indicators such as health and education. Lithuania displayed a balanced growth in both economic and social metrics. These results suggest that tailored microfinance strategies are essential to maximizing economic and social benefits. This study concludes by recommending policy frameworks that encompass local socio-economic dynamics, thereby enhancing the effectiveness of microfinance as a tool for economic development.