Smart cities rely on technology to improve sustainability, and smart water management using IoT plays a key role. IoT sensors monitor water quality, detect leaks, and optimize supply chains. Automated systems control wastewater treatment and stormwater management, reducing environmental impact. Citizens benefit from real-time water usage data through smart meters. IoT-driven predictive maintenance prevents infrastructure failures. By implementing smart water management using IoT, cities can enhance efficiency, reduce costs, and promote conservation.