Họ này gồm các phân họ, các chi.[1]

Phân họ Agabinae Thomson, 1867

• Agabus Leach, 1817
• Agametrus Sharp, 1882
• Andonectes Guéorguiev, 1971
• Hydronebrius Jakovlev, 1897
• Hydrotrupes Sharp, 1882
• Ilybiosoma Crotch, 1873
• Ilybius Erichson, 1832
• Leuronectes Sharp, 1882
• Platambus Thomson, 1859
• Platynectes Régimbart, 1879

Phân họ Colymbetinae Erichson, 1837

• Anisomeria Brinck, 1943
• Senilites Brinck, 1948
• Carabdytes Balke, Hendrich & Wewalka, 1992
• Bunites Spangler, 1972
• Colymbetes Clairville, 1806
• Hoperius Fall, 1927
• Meladema Laporte, 1835
• Melanodytes Seidlitz, 1887
• Neoscutopterus J.Balfour-Browne, 1943
• Rhantus Dejean, 1833
• Rugosus García, 2001

Phân họ Copelatinae Branden, 1885

• Agaporomorphus Zimmermann, 1921
• Aglymbus Sharp, 1882
• Copelatus Erichson, 1832
• Lacconectus Motschulsky, 1855
• Liopterus Dejean, 1833
• Papuadytes Balke, 1998

Phân họ Coptotominae Branden, 1885

• Coptotomus Say, 1830

Phán họ Dytiscinae Leach, 1815

• Acilius Leach, 1817
• Aethionectes Sharp, 1882
• Austrodytes Watts, 1978
• Cybister Curtis, 1827
• Dytiscus Linnaeus, 1758
• Eretes Laporte, 1833
• Graphoderus Dejean, 1833
• Hydaticus Leach, 1817
• Hyderodes Hope, 1838
• Megadytes Sharp, 1882
• Miodytiscus Wickham, 1911
• Notaticus Zimmermann, 1928
• Onychohydrus Schaum & White, 1847
• Prodaticus Sharp, 1882
• Regimbartina Chatanay, 1911
• Rhantaticus Sharp, 1882
• Sandracottus Sharp, 1882
• Spencerhydrus Sharp, 1882
• Sternhydrus Brinck, 1945
• Thermonectus Dejean, 1833
• Tikoloshanes Omer-Cooper, 1956

Phân họ Hydrodytinae K.B.Miller, 2001

• Hydrodytes K.B.Miller, 2001
• Microhydrodytes K.B.Miller, 2002

Phân họ Hydroporinae Aubé, 1836

• Africodytes Biström, 1988
• Agnoshydrus Biström, Nilsson & Wewalka, 1997
• Allodessus Guignot, 1953
• Allopachria Zimmermann, 1924
• Amarodytes Régimbart, 1900
• Andex Sharp, 1882
• Anginopachria Wewalka, Balke & Hendrich, 2001
• Anodocheilus Babington, 1841
• Antiporus Sharp, 1882
• Barretthydrus Lea, 1927
• Bidessodes Régimbart, 1900
• Bidessonotus Régimbart, 1895
• Bidessus Sharp, 1882
• Borneodessus Balke, Hendrich, Mazzoldi & Biström, 2002
• Brachyvatus Zimmermann, 1919
• Calicovatellus K.B.Miller & Lubkin, 2001
• Canthyporus Zimmermann, 1919
• Carabhydrus Watts, 1978
• Celina Aubé, 1837
• Chostonectes Sharp, 1882
• Clypeodytes Régimbart, 1894
• Coelhydrus Sharp, 1882
• Comaldessus Spangler & Barr, 1995
• Crinodessus K.B.Miller, 1997
• Darwinhydrus Sharp, 1882
• Deronectes Sharp, 1882
• Derovatellus Sharp, 1882
• Desmopachria Babington, 1841
• Dimitshydrus Uéno, 1996
• Geodessus Brancucci, 1979
• Gibbidessus Watts, 1978
• Glareadessus Wewalka & Biström, 1998
• Graptodytes Seidlitz, 1887
• Haideoporus Young & Longley, 1976
• Hemibidessus Zimmermann, 1921
• Heroceras Guignot, 1950
• Herophydrus Sharp, 1882
• Heterhydrus Fairmaire, 1869
• Heterosternuta Strand, 1935
• Hovahydrus Biström, 1982
• Huxelhydrus Sharp, 1882
• Hydrocolus Roughley & Larson, 2000
• Hydrodessus J.Balfour-Browne, 1953
• Hydroglyphus Motschulsky, 1853
• Hydropeplus Sharp, 1882
• Hydroporus Clairville, 1806
• Hydrovatus Motschulsky, 1853
• Hygrotus Stephens, 1828
• Hyphoporus Sharp, 1882
• Hyphovatus Wewalka & Biström, 1994
• Hyphydrus Illiger, 1802
• Hypodessus Guignot, 1939
• Iberoporus Castro & Delgado, 2001
• Kintingka Watts & Humphreys, 1999
• Kuschelydrus Ordish, 1976
• Laccornellus Roughley & Wolfe, 1987
• Laccornis Gozis, 1914
• Leiodytes Guignot, 1936
• Limbodessus Guignot, 1939
• Liodessus Guignot, 1939
• Lioporeus Guignot, 1950
• Megaporus Brinck, 1943
• Metaporus Guignot, 1945
• Methles Sharp, 1882
• Microdessus Young, 1967
• Microdytes J.Balfour-Browne, 1946
• Morimotoa Uéno, 1957
• Nebrioporus Régimbart, 1906
• Necterosoma W.J. Macleay, 1871
• Neobidessus Young, 1967
• Neoclypeodytes Young, 1967
• Neoporus Guignot, 1931
• Nirripirti Watts & Humphreys, 2001
• Oreodytes Seidlitz, 1887
• Pachydrus Sharp, 1882
• Pachynectes Régimbart, 1903
• Papuadessus Balke, 2001
• Paroster Sharp, 1882
• Peschetius Guignot, 1942
• Phreatodessus Ordish, 1976
• Platydytes Biström, 1988
• Porhydrus Guignot, 1945
• Primospes Sharp, 1882
• Procoelambus Théobald, 1937
• Pseuduvarus Biström, 1988
• Pteroporus Guignot, 1933
• Queda Sharp, 1882
• Rhithrodytes Bameul, 1989
• Sanfilippodytes Franciscolo, 1979
• Scarodytes Gozis, 1914
• Schistomerus Palmer, 1957
• Sekaliporus Watts, 1997
• Sharphydrus Omer-Cooper, 1958
• Siamoporus Spangler, 1996
• Siettitia Abeille de Perrin, 1904
• Sinodytes Spangler, 1996
• Sternopriscus Sharp, 1882
• Stictonectes Brinck, 1943
• Stictotarsus Zimmermann, 1919
• Stygoporus Larson & LaBonte, 1994
• Suphrodytes Gozis, 1914
• Tepuidessus Spangler, 1981
• Terradessus Watts, 1982
• Tiporus Watts, 1985
• Trichonectes Guignot, 1941
• Trogloguignotus Sanfilippo, 1958
• Tyndallhydrus Sharp, 1882
• Typhlodessus Brancucci, 1985
• Uvarus Guignot, 1939
• Vatellus Aubé, 1837
• Yola Gozis, 1886
• Yolina Guignot, 1936

Phân họ Laccophilinae Gistel, 1856

• Agabetes Crotch, 1873
• Africophilus Guignot, 1948
• Australphilus Watts, 1978
• Japanolaccophilus Satô, 1972
• Laccodytes Régimbart, 1895
• Laccophilus Leach, 1815
• Laccoporus J.Balfour-Browne, 1939
• Laccosternus Brancucci, 1983
• Napodytes Steiner, 1981
• Neptosternus Sharp, 1882
• Philaccolilus Guignot, 1937
• Philaccolus Guignot, 1937
• Philodytes J.Balfour-Browne, 1939

Phân họ Lancetinae Branden, 1885

• Lancetes Sharp, 1882

Phân họ Matinae Branden, 1885

• Allomatus Mouchamps, 1964
• Batrachomatus Clark, 1863
• Matus Aubé, 1836

Phân họ Incertae sedis

• Cretodytes Ponomarenko, 1977
• Palaeodytes Ponomarenko, 1987