Ollie Jay is Professor of Heat and Health and Academic Director of the Heat and Health Research Centre at The University of Sydney. He has led several large-scale projects that have directly influenced international public health heatwave policies in the United States, Europe, and Australia. He recently partnered with Google to deliver his team's research on evidence-based personal cooling strategies through heat warning alerts worldwide. He has also led extreme heat policy development for Tennis Australia (Australian Open), and Sports Medicine Australia, and was the Lead Heat Consultant for the Australian Olympic Team in the Paris 2024 games.  

He has published >230 peer-reviewed articles, including senior author papers in JAMA, NEJM, Lancet, Nature, Annals of Internal Medicine, and Lancet Planetary Health. He has been profiled by The Lancet, and his research program has been featured in Science and Nature highlighting its lead global contribution to protecting society’s most vulnerable to the heat. Since 2024, Ollie has served as Chair of the “Hazards and Impacts” Working Group for the Global Lancet Countdown on Health and Climate Change team. 

He has received funding from organisations such as the National Health and Medical Research Council (NHMRC), Wellcome Trust (UK) and the Minderoo Foundation.