This book constitutes the proceedings of the 14th International Conference on Cloud Computing, CLOUD 2021, held online as part of SCF 2021, during December 10-14, 2021.The 6 full papers and 1 short paper presented were carefully reviewed and selected from 25 submissions. They deal with the latest fundamental advances in the state of the art and practice of cloud computing, identify emerging research topics, and define the future of cloud computing.