This book features a selection of papers presented at the 8th International Congress on 3D Printing Technologies and Digital Industry 2024 (3D-PTC2024), held from September 6–8, 2024, in Antalya, Türkiye, in a hybrid format. It covers several topics reflecting the dynamic landscape of additive manufacturing and digital innovation. The chapters explore cutting-edge advancements in materials and techniques, alongside practical applications in medical, dental, and industrial realms. Digital design, simulation, and sustainability considerations are presented with discussions on regulatory frameworks and future trends, offering a comprehensive view of this transformative field.