Sustainable economic growth around the globe essentially involves an amalgamation of several approaches which include but are not limited to effective policy-making, scientific innovations, and technological interventions to achieve a robust economy. Among these approaches, the recent advancements in microbial nanobiotechnology hold strong potential to impact healthcare, industrial technology, agriculture, and environmental issues that are directly associated with the overall growth of a country’s economy. Microbial nanobiotechnology merges microbiology, microbial technology, and nanotechnology has emerged as an important tool with the potential to significantly transform the socio-economic and environmental growth of developing economies. This chapter focuses on how microbial nanobiotechnology can reshape the economy of developing countries by overviewing various aspects of the economy. After the comprehensive analysis of case studies and empirical data, we have revealed that this field is commending sustainable growth. Here we overview the challenges in healthcare, environmental sustainability, technology, and innovation and reveal the role of microbial nanobiotechnology in solving them. Additionally, we address the underlying challenges and ethical considerations such as genetic modification, regulation, and safety issues. In conclusion, a nation’s economic progress is intricately linked to advancements in science and technology. Integrating microbial nanobiotechnology into innovative ecosystems fosters entrepreneurship, research opportunities, and technology transfer. This not only attracts foreign investments but also lays the foundation for a technology-driven economy in developing countries. These developments have the potential to significantly enhance the overall quality of life and economic prospects in these nations.