Mark A. Wainberg, OC OQ FRSC (born April 21, 1945) is a Canadian HIV/AIDS researcher and HIV/AIDS activist. He is the Director of the McGill University AIDS Centre at the Montreal Jewish General Hospital and Professor of Medicine and of Microbiology at McGill University. His laboratory primarily studies HIV reverse transcriptase, the molecular basis for drug resistance, and gene therapy. He received a B.Sc. from McGill University in 1966, a Ph.D.