Green nanotechnology offers innovative solutions to halt environmental degradation and promote economic growth, positioning itself as a feasible route towards sustainable development. This chapter examines the various uses of green nanotechnology, highlighting how it may improve agricultural practices, reduce environmental pollution, optimize manufacturing processes, and promote ecosystem sustainability. These nanoparticles in agriculture develop environmentally friendly fertilizers and insecticides, increasing crop yield while reducing damage to the environment. Similar to this, green nanotechnology in manufacturing enables more effective and clean production techniques, which lower waste and resource consumption. With the use of green-synthesized nanoparticles, environmental pollutants can be effectively addressed through nano remediation, which helps to clean up contaminated sites. Green nanotechnology also protects terrestrial and aquatic environments by providing solutions for biological pollution treatment, water purification, and oil spill cleanup. It is a key player in the energy sector, helping to improve energy storage technologies and tap into renewable energy sources to create a more sustainable energy future. Additionally, it is used in the food sector to improve food quality, shelf life, and safety, as well as in medical applications for medicine delivery systems, nano sensorsNano sensors, and diagnostics. To guarantee the ethical and secure use of nanomaterials across multiple industries, responsible research and development procedures are important to the sustainable future of nanotechnology. Through the application of green nanotechnology, interested parties can collaborate to create a future that is more robust and sustainable for the environment and society.