This chapter addresses the critical issue of water scarcity in Gulf Cooperation Council (GCC) cities, focusing on the diverse strategies and challenges encountered by Riyadh, Dubai, Doha, Muscat, and Kuwait. It examines advancements in various sectors, including technological innovations in desalination and irrigation, and initiatives aimed at reducing water consumption within the water cycle to mitigate the impacts of arid climates and rapid urban growth. This chapter also highlights efforts toward sustainability through the reuse of treated wastewater. Emphasizing the necessity of an integrated approach, it advocates for combining policy interventions, technological advancements, and community engagement. Concluding with strategic policy recommendations, this chapter aims to enhance water security, foster sustainable development, and strengthen the long-term resiliency of the GCC cities.