Professor Dr. Wan Ariffin Abdullah is a pioneering figure in Paediatric Haematology & Oncology, renowned for establishing the first Paediatric Oncology service outside Kuala Lumpur. With extensive leadership experience, including heading Paediatric Oncology and Haematology units, he has significantly advanced the field. His commitment extends to global humanitarian efforts, volunteering in conflict zones and refugee camps. Dr. Wan Ariffin's expertise is further solidified by numerous international fellowships and over 100 co-authored papers, earning him the Malaysian Outstanding Asian Paediatrician award in 2016.