This book gathers the latest advances, innovations, and applications in the field of manufacturing and industrial engineering, as presented by international researchers at the 9th International Conference on Mechanical Manufacturing and Industrial Engineering (MMIE), held in Kyoto, Japan, on August 19-22, 2026. It covers topics such as fluid dynamics, solid and fracture mechanics, green manufacturing, micro- and nano-manufacturing, machinery dynamics, tribology, control engineering, CAD/CAM/CAE, and precision engineering. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.