This book constitutes the refereed proceedings of the 19th International Conference on CLOUD Computing – CLOUD 2026, held as part of the Smart Computing Frontier, SCF 2026, which took place in Kuala Lumpur, Malayxia, during August 22–25, 2026.

The 7 full papers included in this book were carefully reviewed and selected from 22 submissions. CLOUD 2026 has been a prime international forum for both researchers and industry practitioners to exchange 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.