Dr. Johnny Mahlangu is a personal professor in haematology in the Faculty of Health Sciences of the University of the Witwatersrand and the National Health Laboratory Service, and a consultant clinical haematologist at the Charlotte Maxeke Johannesburg Academic Hospital.

Johnny received his undergraduate and postgraduate training in science and medicine at the University of the Witwatersrand with haematology specialist and clinical haematology sub-specialist qualifications through the Colleges of Medicine of South Africa. His main area of research is novel therapies in bleeding disorders in which he has served as principal investigator for a large number of international multicenter studies. He has published many peer-reviewed journal articles and presented more than 500 oral talks and posters at national and international scientific meetings.

Professor Mahlangu is current president of the College of Pathologists in South Africa, chairman of the South African Medical Research Council Board, and chairman of the International Society on Haemostasis and Thrombosis Scientific and Standardization Committee on Factor VIII, FIX, and rare bleeding disorders. He is a recipient of many awards, including: the Wits University Vice-Chancellor Academic Citizenship Award in 2018, the American Society of Haematology Global Capacity Building Award in 2019, the Publons Top 1% Cross-field Reviewer Award in 2019, Wits University Vice-Chancellor Research Award in 2020, an elected member of the Academy of Science of South Africa in 2020, and recipient of the International Society on Thrombosis and Haemostasis Esteemed Career Award in 2021.