The 4th International Conference on Cloud, Big Data and Web Services (CBW 2023) will take place on March 25-26, 2023, in Sydney, Australia, providing a platform for sharing innovative research and developments in the fields of cloud computing, big data, and web services. Authors are encouraged to submit original papers by February 18, 2023, on a wide range of topics including cloud architecture, big data analytics, and web service computing models. Selected papers will be published in various journals related to cloud computing and data management.