Hany Ariffin is Professor of Paediatrics and Head of the Division of Paediatric Haematology-Oncology and Blood & Marrow Transplantation at Universiti Malaya Medical Centre (UMMC). She also leads the Biobank Unit at the Faculty of Medicine and serves as a member of the Universiti Malaya Senate.

Her primary research focus is childhood leukaemia, and since 2003, she has served as the Malaysian lead for the Malaysia-Singapore (MASPORE) Leukaemia Study Group. Her other research interests include childhood cancer survivorship, stem cell transplantation, and inherited cancers.

In 2015, Professor Hany received the Anugerah Akademik Negara award, and in 2018, she was honoured with the Distinguished Researcher Award from University of Malaya. She is currently the chairperson of the paediatric oncology accreditation committee for the National Specialist Register and a former president of the Malaysian Society of Paediatric Haematology-Oncology. She also chairs the VIVA-Asia Bone Marrow Transplantation Consortium.

In addition, Professor Hany serves on the Editorial Board of JCO Global Oncology and OncoDaily, and is an Associate Editor for Technology in Cancer Research (Tumour Biology) & Treatment and Frontiers in Oncology (Paediatric Oncology).