Name
- Dawkins, William Boyd, Knight, geologist and palaeontologist, 1837-19291
- Dawson, John William, Knight, geologist and educationist, 1820-18991
- Deichmüller, Johannes Victor, German mineralogist and palaeontologist, 1854-19441
- Delgado, Joaquim Filippe Nery da Encarnacao, Portuguese geologist, 1835-19081
- Dervieux, Ermanno, writer, fl 1893-19231
- Deshayes, Gérard Paul, naturalist, 1795-18751
- Detmer, Wilhelm, botanist, 1850-19301
- Dickie, George, botanist, 1812-18821
- Dickson, Hugh Neville, botanist and explorer, 1861-19441
- Dimmock, George, entomologist, genealogist and editor, ?1852-19301
- Dolby, Charlotte Helen, singer, wife of Prosper Sainton, 1821-18851
- Doria, Giacomo, naturalist, botanist and politician, 1840-19131
- Dowker, George, geologist, botanist and archaeologist, 1828-18991
- Drew, Edwin1
- Drew, Frederick, geologist, 1836-18911
- Dreyer, Friedrich, naturalist, fl 18891
- Duncan, Peter Martin, geologist, 1824-18911
- Duns, John, clergyman, academic and teacher, 1820-19091
- Durham, Arthur Edward, surgeon, lecturer and writer, 1834-18951
- Edwards, Henry, Secretary, New York Entomological Club1