This post conference LNCS volume constitutes the proceedings of the 8th International Conference on Dynamics of Information Systems, DIS 2025, in London, UK, took place in June 2025. The 26 full papers presented in this volume were carefully reviewed and selected from 55 submissions. They are grouped into the following topics: Information Systems & Networks; Optimization & Operations Research; Artificial Intelligence & Machine Learning; Applications in Healthcare, Security & Society.