Norman Christian Dahl (born 1918)
Rosny Laurent Daniel (born 1987)
William "Bill" John Davidson (born 1918)
Dr. Sharon Lynn Deem (born 1963)
Dr. Elaine Claire DeFreitas (born 1947)
Dr. Anne Searls De Groot (born 1956)
Dr. David Bliss Dekker (born 1919)
Max Ludwig Henning Delbrück (born 1906)
Charles Peter DeLisi (born 1941)
Dr. Mark Randall Denison (born 1956)
Dr. David Daniel Derse (born 1949)
Dr. James Stephen Desmond (born 1971)
Dr. Anthony Louis DeVico (born 1957)
Dr. Emmie de Wit (born 1980(est.))
Dr. Avtar Singh Dhillon (born 1961)
Irene Levine Diamond (born 1910)
Dr. Jared Mason Diamond (born 1937)
Dr. Michael S. Diamond (born 1964)
Dr. Gary Leo Disbrow (born 1967)
Dr. Theodosius Grigorovich Dobzhansky (born 1900)
Dr. John James Donnelly III (born 1954)
Dr. Jennifer Anne Doudna (born 1964)
Dr. Scott Ferris Dowell (born 1963)
Christine Julia (Zbick) Drabick (born 1958)
Dr. Christian Heinrich Maria Drosten (born 1972)
Dr. Peter Heinz Herrmann Duesberg (born 1936)
Dr. Renato Dulbecco (born 1914)
Eugene Éleuthère Irénée du Pont jr. (born 1873)
Eugene Éleuthère du Pont (born 1882)