David Simmons, MA, MBBS, FRACP, FRCP, MD (Cantab), is the recipient of the 2020 Norbert Freinkel Award, given in memory of Norbert Freinkel, a dedicated investigator and thought leader. This award honors a researcher who has made outstanding contributions to the understanding and treatment of diabetes in pregnancy. Distinguished Professor Simmons will deliver the Norbert Freinkel Award Lecture on Saturday, June 13. Professor Simmons currently serves as professor of medicine at Western Sydney University, Macarthur Clinical School; head of the Endocrinology Department at Campbelltown Hospital; and director of the South Western Sydney Diabetes, Obesity, and Metabolism Translational Research Unit. The author of more than 330 publications, Professor Simmons is one of the most prolific researchers in the field of diabetes and pregnancy, with major studies on the epidemiology, prevention, and management of diabetes in pregnancy. He was the trial coordinator for the Vitamin D and Lifestyle Intervention for Gestational Diabetes Mellitus Prevention (DALI), a major pan-European randomized control trial to prevent GDM, and he leads the Treatment of Booking Gestational Diabetes Mellitus (TOBOGM) trial. He was a member of the International Association of Diabetes and Pregnancy Study Groups and World Health Organization groups developing the new GDM criteria. Professor Simmons has served in various national and international leadership roles, including past president of the Australasian Diabetes in Pregnancy Society. He has won several national and international awards and has been a mentor for many early career investigators in the field. Please join us in celebrating Distinguished Professor David Simmons, MA, MBBS, FRACP, FRCP, MD (Cantab), for outstanding contributions to the understanding and treatment of diabetes in pregnancy.