Processing and fabrication technologies play a pivotal role in enabling the next generation of polymeric and composite materials with advanced functionality. Conventional polymer processing routes such as extrusion, molding, and film formation have been the backbone of industrial-scale material production for decades. However, the growing demand for precision, sustainability, and multifunctionality in modern applications calls for innovative fabrication methods. Advanced processing strategies are now addressing challenges in structural control, scalability, and energy efficiency, enabling materials with tailored architectures and properties. In parallel, additive and digital manufacturing techniques, including 3D and 4D printing, offer unprecedented design freedom and rapid prototyping capabilities. This session will highlight recent progress in advanced polymer and composite processing, digital design-enabled fabrication, and next-generation additive manufacturing, with a particular emphasis on sustainable, high-performance, and application-driven solutions. The convergence of traditional processing with digital and data-driven approaches is expected to transform not only material development but also manufacturing paradigms across industries such as mobility, energy, electronics, healthcare, and beyond.