1. Dactylogyridae Bychowsky 1933
2. Dactylopteridae Rafinesque 1810
3. Dallinidae Beecher 1893
4. Damaeidae Berlese 1896
5. Daniconematidae Moravec & Køie 1987
6. Daphniphyllaceae Müller Argoviensis 1869
7. Darcythompsoniidae Lang 1936
8. Darwinulidae G.S. Brady & Norman 1889
9. Dasyatidae D.S. Jordan 1888
10. Dasyuridae Goldfuss 1820
11. Davaineidae Braun 1900
12. Delphinidae Gray 1821
13. Dendrophylliidae Gray 1847
14. Dennstaedtiaceae Lotsy 1909
15. Desmarestiaceae (Thuret) Kjellman 1880
16. Dexaminidae Leach 1814
17. Diadematidae Gray 1855
18. Diadumenidae Stephenson 1920
19. Diapheridae Penha & Naggs
20. Diaptomidae Baird 1850
21. Diaspididae
22. Diastylidae Bate 1856
23. Diclidophoridae Fuhrmann 1928
24. Dicrocoeliidae Looss 1899
25. Dicroglossidae Anderson 1871
26. Dicruridae Vigors 1825
27. Dictyotaceae Lamouroux ex Dumortier 1822
28. Dilepididae Railliet & Henry 1909
29. Dioctophymatidae Railliet 1915
30. Diodontidae Bonaparte 1838
31. Diogenidae Ortmann 1892
32. Diphyllobothriidae Lühe 1910
33. Diploastreidae Chevalier & Beauvais 1987
34. Diplommatinidae L. Pfeiffer 1857
35. Diplostomatidae Poirier 1886
36. Diplotriaenidae Skryabin 1916
37. Dipodidae Fischer de Waldheim 1817
38. Diprionidae Rohwer 1911
39. Dipterocarpaceae Blume 1825
40. Dipylidiidae Stiles 1896
41. Discamminidae Mikhalevich 1980
42. Discinidae Gray 1840
43. Dogielinotidae Gurjanova 1953
44. Donacidae Fleming 1828
45. Dorvilleidae Chamberlin 1919
46. Dotillidae Stimpson 1858
47. Drepaneidae T.N. Gill 1872
48. Drosophilidae Róndani 1856
49. Dyscoliidae Fischer & Oehlert 1892
50. Dytiscidae Leach 1815