With the rapid adoption of cloud technology, ensuring secure and privacy-preserving authentication is crucial for protecting user data and maintaining trust in cloud services. Traditional authentication methods often require direct verification of credentials, which increases the risk of exposing sensitive information. Zero-Knowledge Proofs (ZKPs) offer an innovative solution by allowing one party to prove knowledge of a secret without revealing the secret itself. This paper explores the application of ZKPs in cloud authentication systems, presenting a comprehensive framework for leveraging ZKPs to enhance security, minimize data exposure, and uphold privacy. Through an analysis of ZKP protocols, use cases, and performance considerations, this research highlights the transformative potential of ZKPs in strengthening cloud security.