This book constitutes the refereed proceedings of the 8th International Conference on Soft Computing in Data Science, SCDS 2025, which was held in Penang, Malaysia, in October 8-9, 2025.The 35 full papers presented in this book were carefully selected and reviewed from 71 submissions. These papers have been organized in the following topical sections: Data Analytics and TechnologiesData Mining and Image ProcessingMathematical and Statistical LearningArtificial Intelligence Techniques and ApplicationsComputing and Optimization