Dr Natasha Leighl leads the Thoracic Medical Oncology Group at the Princess Margaret Cancer Centre, and is Professor in the Department of Medicine, and Adjunct Professor in the Institute of Health Policy, Management and Evaluation at the University of Toronto. She holds the OSI Pharmaceuticals Foundation Chair in Cancer New Drug Development through the Princess Margaret Cancer Foundation. She has published over 300 peer-reviewed papers, has held (as principal or co-investigator) over $600 million in peer-reviewed grant funding, and has mentored many oncology trainees that have gone on to leadership roles in oncology around the world. Recently, she was awarded the American Society of Clinical Oncology Excellence in Teaching Award (2019).

After receiving her MD from the University of Toronto, Canada, Dr. Leighl completed residencies in internal medicine at the University of Calgary and in medical oncology at the University of Toronto. She subsequently completed a Fellowship in Thoracic Oncology with Dr. Frances Shepherd at the Princess Margaret Hospital in Canada, a Fellowship in Clinical Oncology with Prof. Martin Tattersall at the University of Sydney in Australia, and received her Masters in Medical Science (MMSc) in Clinical Epidemiology at the University of Newcastle, Australia.