Michael Thomas Lynskey is a New Zealand academic and psychiatrist. He is Professor of Addictions in the National Addictions Centre at the Institute of Psychiatry, Psychology and Neuroscience of King's College London in the United Kingdom. He has previously held positions at the National Drug and Alcohol Research Centre of the University of New South Wales in Australia and at the Department of Psychiatry at the Washington University School of Medicine in the United States. He trained in New Zealand, where he graduated from the University of Otago and the University of Canterbury and worked on the Christchurch Health and Development study.