Suresh Dinakar Jayakar (21 September 1937, Bombay – 21 January 1988) was an Indian biologist who pioneered in the use of quantitative approaches in genetics and biology.
At that institute, Jayakar received early instruction in genetics in a course taught by Krishna Dronamraju and additional training with Helen Spurway.
He collaborated with Helen Spurway and Krishna Dronamraju in studies of the nest building activity of the wasp Sceliphron madraspatanum (Fabr.).
After Haldane's death, he moved to Italy at the invitation of Luigi Luca Cavalli-Sforza at the University of Pavia.
Haldane considered him as a star who would rise in the "Indian scientific firmament".