Alberto Costa was a pioneering Italian-born British paediatric oncologist and haematologist, renowned for his significant contributions to the treatment and understanding of childhood cancers. He dedicated his career to improving survival rates and quality of life for young cancer patients, particularly focusing on lymphoma and leukaemia. Costa was instrumental in establishing the SIOPEL (International Society of Paediatric Oncology Liver Tumour Study Group), which revolutionized the treatment of hepatoblastoma, a rare childhood liver cancer. His work earned him numerous accolades and solidified his legacy as a compassionate and impactful figure in the field of paediatric oncology.