Professor Tracey O'Brien AM
NSW Chief Cancer Officer and Chief Executive, Cancer Institute NSW

Prof Tracey is a highly respected oncologist, clinician leader and researcher with a career spanning over 25 years, fostering collaboration and driving innovation in cancer care. She previously directed the Kids Cancer Centre at Sydney Children’s Hospital for seven years and was Director of the Transplant & Cellular Therapy Program for 18 years. Prof Tracey has held numerous high-profile leadership roles, including Advisory Chair of Cancer Australia, Vice Advisory-Chair for the International Centre for Bone Marrow Transplant Research (Africa, Asia and Australasia) and V/President of the ANZ Children's Oncology Group.

In recognition of her contributions to cancer and medical research, Prof Tracey was appointed a Member of the Order of Australia in June 2024. In 2023, she was profiled as one of the foremost women in paediatric cancer by the International Society of Paediatric Oncology. In 2019, she was named in the Australian Financial Review’s Top 10 Australian Women of Influence, winning the Innovation category.

In addition to her medical expertise, Prof Tracey has a Master of Law (Health) and an MBA and is a conjoint Professor in Clinical Medicine (UNSW) and Honorary Professor at the Centre for Applied Artificial Intelligence, School of Computing, University of Macquarie. She remains committed to mentoring the next generation of clinician leaders and maintains an active clinical practice in cancer survivorship at Sydney Children’s Hospital.