Sustainable nanomaterials play a crucial role in promoting green supply chains and environmental sustainability by offering eco-friendly, biodegradable, and low-toxicity materials with enhanced properties. These materials, engineered at the nanoscale, provide unique advantages such as high surface area-to-volume ratios, catalytic activity, and tunable properties, enabling more efficient and sustainable industrial processes. Their applications span renewable energy, water purification, waste management, and sustainable packaging, contributing to reduced resource consumption, waste generation, and environmental impact. The integration of sustainable nanomaterials into supply chains enhances efficiency and sustainability across all stages, from sourcing raw materials to disposal. They support circular economy principles by improving product durability, recyclability, and biodegradability. Case studies demonstrate their effectiveness in reducing carbon emissions, improving energy efficiency, and minimizing waste. However, challenges such as high production costs, regulatory frameworks, and knowledge gaps hinder their widespread adoption. Future research should focus on cost-effective production methods, regulatory clarity, and comprehensive lifecycle assessments to ensure the environmental benefits of nanomaterials are maximized. Collaboration among stakeholders, technological advancements, and consumer demand are essential for the successful integration of sustainable nanomaterials into green supply chains. This integration holds significant potential for driving environmental sustainability, innovation, and long-term prosperity.Sustainable nanomaterials play a crucial role in promoting green supply chains and environmental sustainability by offering eco-friendly, biodegradable, and low-toxicity materials with enhanced properties. These materials, engineered at the nanoscale, provide unique advantages such as high surface area-to-volume ratios, catalytic activity, and tunable properties, enabling more efficient and sustainable industrial processes. Their applications span renewable energy, water purification, waste management, and sustainable packaging, contributing to reduced resource consumption, waste generation, and environmental impact. The integration of sustainable nanomaterials into supply chains enhances efficiency and sustainability across all stages, from sourcing raw materials to disposal. They support circular economy principles by improving product durability, recyclability, and biodegradability. Case studies demonstrate their effectiveness in reducing carbon emissions, improving energy efficiency, and minimizing waste. However, challenges such as high production costs, regulatory frameworks, and knowledge gaps hinder their widespread adoption. Future research should focus on cost-effective production methods, regulatory clarity, and comprehensive lifecycle assessments to ensure the environmental benefits of nanomaterials are maximized. Collaboration among stakeholders, technological advancements, and consumer demand are essential for the successful integration of sustainable nanomaterials into green supply chains. This integration holds significant potential for driving environmental sustainability, innovation, and long-term prosperity.