David Glasser (born 29 September 1936) is a South African engineer best known for his co-development of attainable region theory and research into improving the efficiency of chemical processes. In 2001 he was the inaugural recipient of the Harry Oppenheimer Fellowship Award. He has also been awarded the Bill-Neale May Gold Medal by the South African Institute of Chemical Engineers, as well as the Science for Society Gold Medal from the Academy of Sciences of South Africa. He currently works as Professor Extraordinarius of the University of South Africa (UNISA) and resides in Australia.