The transition to a Circular Economy (CE) is a critical strategy in addressing global challenges related to resource depletion, waste generation, and environmental sustainability. Cloud computing, as a scalable and data-driven technology, has a significant role to play in enabling the circular economy by enhancing resource efficiency, waste reduction, and the optimization of product lifecycles. This paper explores how cloud computing facilitates circular economy practices by leveraging advanced technologies such as data analytics, Internet of Things (IoT), and Artificial Intelligence (AI). (...) We discuss how cloud platforms support businesses in tracking and managing resource flows, implementing closed-loop systems, and optimizing product design, repair, and reuse. By analyzing real-world case studies from industries such as manufacturing, retail, and energy, we highlight the potential of cloud-based systems in driving sustainable business models that minimize waste and maximize resource recovery. The paper also addresses challenges in the integration of cloud computing with circular economy practices and provides insights into the future potential of cloud technologies in advancing sustainability. (shrink)