This book covers cutting-edge research and developments in additive manufacturing for biomedical engineering. It gathers the proceedings of the Fourth edition of the national congress of the Italian Digital Biomanufacturing Network (IDBN), held on September 26–27, 2024, in Florence, Italy. The eleven peer-reviewed chapters included in this book, report on topics related to 3D printing and bioprinting in medicine and surgery. They cover additive manufacturing techniques applied to medical diagnosis and treatment, as well as innovative procedures for fabrication of medical devices, personalised approaches to patient treatment and patient-specific preoperative planning. They also report on advanced materials and biomaterials with properties suitable for medical and surgical applications. All in all, this book offers a timely snapshot for both researchers and professionals working at the interface between bioengineering and manufacturing.