| Acanthopidae Burmeister, 1838 | | 102 | Species | Taxom |
| Acmaeoblattidae Durden, 1969 | | 4 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 7637 | Species | Taxom |
| Adeloblattidae Durden, 1969 | | 4 | Species | Taxom |
| Adeloneuridae Carpenter, 1938 | | 1 | Species | Taxom |
| Adumbratomorphidae Gorochov, 1987 | | 1 | Species | Taxom |
| Aerophasmidae Martynov, 1928 | | 20 | Species | Taxom |
| Aeroplanidae Tillyard, 1918 | | 5 | Species | Taxom |
| Agathemeridae Bradler, 2003 | | 10 | Species | Taxom |
| Alexarasniidae Gorochov, 2011 | | 5 | Species | Taxom |
| Ambermantidae Grimaldi, 2003 | | 1 | Species | Taxom |
| Ambloblattidae Durden, 1969 | | 1 | Species | Taxom |
| Amboneuridae Carpenter, 1980 | | 1 | Species | Taxom |
| Amorphoscelidae Stål, 1877 | | 105 | Species | Taxom |
| Anaplectidae Walker, 1868 | | 1 | Species | Taxom |
| Andesembiidae Ross, 2003 | | 7 | Species | Taxom |
| Anelcanidae Carpenter, 1986 | | 2 | Species | Taxom |
| Anisacanthidae Günther, 1953 | | 31 | Species | Taxom |
| Anisembiidae Davis, 1940 | | 127 | Species | Taxom |
| Anisolabididae Verhoeff, 1902 | | 104 | Species | Taxom |
| Anomalogrammatidae Carpenter, 1943 | | 1 | Species | Taxom |
| Anostostomatidae Saussure, 1859 | Wetas & King Crickets | 253 | Species | Taxom |
| Antemylacridae Durden, 1972 | | 1 | Species | Taxom |
| Anthracoblattinidae Durden, 1969 | | 37 | Species | Taxom |
| Anthracoptilidae Handlirsch, 1922 | | 24 | Species | Taxom |
| Anthracothremmidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Apachelytridae Carpenter & ..., 1964 | | 1 | Species | Taxom |
| Apachyidae Verhoeff, 1902 | | 10 | Species | Taxom |
| Apithanidae Handlirsch, 1911 | | 1 | Species | Taxom |
| Appertiidae Paulian, 1965 | | 1 | Species | Taxom |
| Apsidoneuridae Carpenter, 1961 | | 2 | Species | Taxom |
| Araripeblattidae Martins-Neto..., 2010 | | 8 | Species | Taxom |
| Archelytridae Carpenter, 1933 | | 2 | Species | Taxom |
| Archembiidae Ross, 2001 | | 27 | Species | Taxom |
| Archeorhinotermitidae Krishna & Gr..., 2003 | | 5 | Species | Taxom |
| Archimylacridae Handlirsch, 1906 | | 307 | Species | Taxom |
| Archipseudophasmatidae Zompro, 2001 | | 3 | Species | Taxom |
| Archoblattinidae (Schneider, 1983) | | 5 | Species | Taxom |
| Archotermopsidae Engel, Grima..., 2009 | Rottenwood Termites | 6 | Species | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 42 | Species | Taxom |
| Arixeniidae Burr, 1911 | | 2 | Species | Taxom |
| Aschiphasmatidae Brunner von ..., 1893 | | 128 | Species | Taxom |
| Australembiidae Ross, 1963 | | 19 | Species | Taxom |
| Austroperlidae Tillyard, 1921 | | 19 | Species | Taxom |
| Bacillidae Brunner von ..., 1893 | Bacillid Stick Insects | 60 | Species | Taxom |
| Bacunculidae (Brunner, 1893) | | 1 | Species | Taxom |
| Baissogryllidae Gorochov, 1985 | | 37 | Species | Taxom |
| Baissomantidae Gratshev & Z..., 1993 | | 2 | Species | Taxom |
| Baleyopterygidae N.D. Siniche..., 1985 | | 18 | Species | Taxom |
| Bellodermatidae Zhao & al, 2010 | | 2 | Species | Taxom |
| Bintoniellidae Handlirsch, 1937 | | 12 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 1603 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 1380 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 1032 | Species | Taxom |
| Blattulidae Vishnyokova, 1982 | | 107 | Species | Taxom |
| Bouretidae Martins-Neto, 2001 | | 2 | Species | Taxom |
| Bradyblattidae Durden, 1969 | | 91 | Species | Taxom |
| Bradyporidae (Burmeister, 1838) | Armoured crickets | 5 | Species | Taxom |
| Cacurgidae Handlirsch, 1911 | | 7 | Species | Taxom |
| Caloblattinidae Vršanský & A..., 2000 | | 12 | Species | Taxom |
| Caloneuridae Handlirsch, 1906 | | 21 | Species | Taxom |
| Capniidae Klapálek, 1905 | Capniid winter stoneflies | 490 | Species | Taxom |
| Carcinophoridae Hincks, 1954 | | 121 | Species | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 16 | Species | Taxom |
| Chaulioditidae Handlirsch, 1908 | | 10 | Species | Taxom |
| Cheliphlebidae Handlirsch, 1911 | | 4 | Species | Taxom |
| Chelisochidae Burr, 1907 | Black earwig | 32 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 275 | Species | Taxom |
| Chorotypidae Stål, 1873 | | 164 | Species | Taxom |
| Chresmodidae Haase, 1890 | | 20 | Species | Taxom |
| Clathrotitanidae Riek, 1954 | | 3 | Species | Taxom |
| Clothodidae Tillyard, 1937 | | 18 | Species | Taxom |
| Cnemidolestidae Handlirsch, 1906 | | 12 | Species | Taxom |
| Cobaloblattidae Durden, 1969 | | 1 | Species | Taxom |
| Cooloolidae Rentz, 1980 | Cooloola monster | 4 | Species | Taxom |
| Corydiidae de Saussure, 1864 | Sand cockroaches | 307 | Species | Taxom |
| Cratomastotermitidae Engel, Grima..., 2009 | | 1 | Species | Taxom |
| Cretomantidae Gratshev & Z..., 1994 | | 1 | Species | Taxom |
| Cryptocercidae Handlirsch, 1925 | Brown-hooded cockroaches | 13 | Species | Taxom |
| Cylindrachetidae Giglio-Tos, 1914 | Sandgroper | 19 | Species | Taxom |
| Cymbopsidae Kukalová, 1965 | | 1 | Species | Taxom |
| Cymenophlebiidae Pruvost, 1919 | | 1 | Species | Taxom |
| Damasippoididae Zompro, 2004 | | 3 | Species | Taxom |
| Deinotitanidae Gorochov, 2011 | | 1 | Species | Taxom |
| Delpuenteblattidae Martins-Neto..., 2007 | | 3 | Species | Taxom |
| Dericorythidae Jacobson & B..., 1902 | | 175 | Species | Taxom |
| Dermapteridae Vishniakova, 1980 | | 5 | Species | Taxom |
| Dermelytridae Kukalová, 1966 | | 4 | Species | Taxom |
| Dermopteridae | | 1 | Species | Taxom |
| Diamphipnoidae Ricker, 1950 | | 11 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 1586 | Species | Taxom |
| Diechoblattinidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Dinoblattidae Durden, 1969 | | 5 | Species | Taxom |
| Diplatyidae (Verhoeff, 1902) | | 45 | Species | Taxom |
| Doubraviidae Aristov, 2015 | | 3 | Species | Taxom |
| Dzhajloutshellidae Gorochov, 1994 | | 5 | Species | Taxom |
| Eadiidae Vršanský, 2009 | | 1 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 533 | Species | Taxom |
| Elcanidae Handlirsch, 1906 | | 129 | Species | Taxom |
| Elytroneuridae Carpenter, 1933 | | 1 | Species | Taxom |
| Embiidae Burmeister, 1839 | | 99 | Species | Taxom |
| Embonychidae Navas, 1917 | | 1 | Species | Taxom |
| Emphylopteridae Handlirsch, 1922 | | 1 | Species | Taxom |
| Empusidae Burmeister, 1838 | Violin mantises | 24 | Species | Taxom |
| Eneopteridae (Saussure, 1893) | Bush cricket | 456 | Species | Taxom |
| Ensiferoblattidae Li and Huang, 2023 | | 1 | Species | Taxom |
| Ensiferophasmatidae Zompro, 2005 | | 1 | Species | Taxom |
| Eoblattidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Eolocustopsidae Riek, 1976 | | 1 | Species | Taxom |
| Episactidae Burr, 1899 | | 68 | Species | Taxom |
| Eremiaphilidae Wood-Mason, 1889 | | 79 | Species | Taxom |
| Eucaenidae Handlirsch, 1906 | | 5 | Species | Taxom |
| Eumastacidae Burr, 1898 | Matchstick grasshoppers | 273 | Species | Taxom |
| Euschmidtiidae Rehn, 1948 | | 241 | Species | Taxom |
| Eustheniidae Tillyard, 1921 | | 25 | Species | Taxom |
| Euthygrammatidae Martynov, 1928 | | 1 | Species | Taxom |
| Euxenoperlidae Riek, 1976 | | 5 | Species | Taxom |
| Evenkidae Rasnitsyn, 1983 | | 1 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 289 | Species | Taxom |
| Fractaliidae Vrsansky and..., 2021 | | 1 | Species | Taxom |
| Fulgorinidae Durden, 1969 | | 2 | Species | Taxom |
| Fuziidae Vršanský, Li..., 2009 | | 6 | Species | Taxom |
| Gallophasmatidae Nel & al., 2010 | | 1 | Species | Taxom |
| Gerapompidae Handlirsch, 1906 | | 7 | Species | Taxom |
| Geraridae Scudder, 1885 | | 24 | Species | Taxom |
| Gripopterygidae Enderlein, 1909 | | 369 | Species | Taxom |
| Gryllacrididae Blanchard, 1845 | Camel Crickets | 955 | Species | Taxom |
| Gryllavidae Gorochov, 1986 | | 4 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 2040 | Species | Taxom |
| Grylloblattidae E. M. Walker, 1914 | Grylloblattids | 38 | Species | Taxom |
| Gryllomantidae Gorochov, 2006 | | 1 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 162 | Species | Taxom |
| Gulouidae (Béthoux, Cui..., 2011) | | 1 | Species | Taxom |
| Gyroblattidae Durden, 1969 | | 7 | Species | Taxom |
| Hadentomidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Haglidae Handlirsch, 1906 | Hump-winged cricket | 109 | Species | Taxom |
| Hagloedischiidae Gorochov, 1986 | | 2 | Species | Taxom |
| Haglotettigoniidae Gorochov, 1988 | | 2 | Species | Taxom |
| Hapalopteridae Handlirsch, 1906 | | 19 | Species | Taxom |
| Hebeigrammidae Hong, 2003 | | 1 | Species | Taxom |
| Hemimeridae Sharp, 1895 | | 7 | Species | Taxom |
| Hemimylacridae Waterlot, 1934 | | 18 | Species | Taxom |
| Herdinidae Carpenter & ..., 1972 | | 1 | Species | Taxom |
| Heteronemiidae Rehn, J. A. G., 1904 | | 89 | Species | Taxom |
| Heteropterygidae Kirby, 1896 | | 168 | Species | Taxom |
| Heteroptilidae Carpenter, 1977 | | 1 | Species | Taxom |
| Hodotermitidae Desneux, 1904 | Harvester termites | 30 | Species | Taxom |
| Homoeodictyidae Martynov, 1937 | | 1 | Species | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | Flower mimic mantises | 320 | Species | Taxom |
| Idelinellidae Storozhenko, 1997 | | 8 | Species | Taxom |
| Idiomylacridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Indotermitidae (Roonwal, 1958) | | 10 | Species | Taxom |
| Iridopterygidae Giglio-Tos, 1919 | | 136 | Species | Taxom |
| Ischnoneuridae Handlirsch, 1906 | | 9 | Species | Taxom |
| Jantarimantidae Vrsansky, 2002 | | 1 | Species | Taxom |
| Juramantidae Vrsansky, 2002 | | 1 | Species | Taxom |
| Kalotermitidae Froggatt, 1897 | Dampwood termites | 532 | Species | Taxom |
| Krausichnidae Genise, 2004 | | 4 | Species | Taxom |
| Labidelytridae Kukalova-Peck, 1987 | | 1 | Species | Taxom |
| Labiduridae Verhoeff, 1902 | Long-horned earwig | 46 | Species | Taxom |
| Labiidae (Burr, 1909) | Little earwig | 170 | Species | Taxom |
| Lathiceridae Dirsh, 1954 | | 4 | Species | Taxom |
| Lentulidae Dirsh, 1956 | Lentulid Grasshoppers | 189 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 446 | Species | Taxom |
| Liberiblattinidae Vrsansky, 2002 | | 23 | Species | Taxom |
| Lithidiidae Dirsh, 1961 | | 33 | Species | Taxom |
| Liturgusidae Giglio-Tos, 1919 | | 93 | Species | Taxom |
| Locustavidae Sharov, 1968 | | 16 | Species | Taxom |
| Locustidae (Kirby, 1825) | Band-winged grasshoppers | 3 | Species | Taxom |
| Locustopsidae Handlirsch, 1906 | | 80 | Species | Taxom |
| Lonchodidae | | 49 | Species | Taxom |
| Lygobiidae Mitchell, 1908 | | 1 | Species | Taxom |
| Malgasiidae (Gorochov, 1984) | | 15 | Species | Taxom |
| Mancusoblattidae Martins-Neto..., 2005 | | 8 | Species | Taxom |
| Manipulatoridae Vrsansky & B..., 2015 | | 2 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 1311 | Species | Taxom |
| Mantoblattidae Gorochov, 2006 | | 1 | Species | Taxom |
| Mantoididae Giglio-Tos, 1927 | | 12 | Species | Taxom |
| Mantophasmatidae Zompro, Kla..., 2002 | Gladiators | 37 | Species | Taxom |
| Mastacideidae Rehn, 1948 | | 8 | Species | Taxom |
| Mastotermitidae Desneux, 1904 | | 28 | Species | Taxom |
| Megagnathidae Tillyard, 1918 | | 1 | Species | Taxom |
| Megelytridae Carpenter, 1933 | | 1 | Species | Taxom |
| Melinophlebiidae Durden, 1969 | | 2 | Species | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 186 | Species | Taxom |
| Mesoedischiidae Gorochov, 1987 | | 4 | Species | Taxom |
| Mesoleuctridae Sinitshenkova, 1982 | | 9 | Species | Taxom |
| Mesorthopteridae Tillyard, 1922 | | 28 | Species | Taxom |
| Mesotitanidae Tillyard, 1925 | | 20 | Species | Taxom |
| Metallyticidae Handlirsch, 1925 | | 6 | Species | Taxom |
| Micropalentomidae Schmidt, 1962 | | 2 | Species | Taxom |
| Mogoplistidae Saussure, 1877 | Scaly cricket | 400 | Species | Taxom |
| Morabidae Rehn, 1948 | | 125 | Species | Taxom |
| Mutoviidae Vršanský & A..., 2012 | | 1 | Species | Taxom |
| Mylacridae Scudder, 1886 | | 82 | Species | Taxom |
| Myrmecophilidae Saussure, 1874 | Ant cricket | 103 | Species | Taxom |
| Nanomantidae | | 1 | Species | Taxom |
| Narkemidae Handlirsch, 1911 | | 2 | Species | Taxom |
| Necymylacridae Durden, 1969 | | 18 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 825 | Species | Taxom |
| Neoblattariae Scudder, 1886 | | 5 | Species | Taxom |
| Neorthroblattinidae Handlirsch, 1906 | | 20 | Species | Taxom |
| Neraphidiidae Aristov, 2014 | | 4 | Species | Taxom |
| Nocticolidae Bolivar, 1892 | Australian cockroaches | 114 | Species | Taxom |
| Nocticolinae | | 44 | Species | Taxom |
| Notoligotomidae Davis, 1940 | | 7 | Species | Taxom |
| Notonemouridae (Ricker, 1950) | | 2 | Species | Taxom |
| Nugonioneuridae Carpenter, 1976 | | 1 | Species | Taxom |
| Nyctiboridae Brunner von ..., 1893 | | 9 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 172 | Species | Taxom |
| Oecanthoperlidae Storozhenko, 1988 | | 1 | Species | Taxom |
| Oedischiidae Handlirsch, 1906 | | 34 | Species | Taxom |
| Olidae Vr?anský & W..., 2017 | | 2 | Species | Taxom |
| Oligotomidae Enderlein, 1909 | | 55 | Species | Taxom |
| Omaliidae Handlirsch, 1904 | | 2 | Species | Taxom |
| Ommexechidae Bolivar, 1884 | | 47 | Species | Taxom |
| Orthomylacridae see Durden, 1969 | | 54 | Species | Taxom |
| Osmylitidae Martynova, 1949 | | 2 | Species | Taxom |
| Oulopterygidae Rehn, 1951 | | 1 | Species | Taxom |
| Pabuonqedidae Vrsansky et al., 2019 | | 2 | Species | Taxom |
| Pachytylopsidae Handlirsch, 1904 | | 6 | Species | Taxom |
| Paedembiidae Ross, 2006 | | 3 | Species | Taxom |
| Palaeoblattidae Cockerell, 1927 | | 1 | Species | Taxom |
| Palaeonemouridae N.D. Siniche..., 1987 | | 34 | Species | Taxom |
| Palaeoperlidae Sharov, 1961 | | 10 | Species | Taxom |
| Paleoblattidae Scudder, 1879 | | 22 | Species | Taxom |
| Paleuthygrammatidae Carpenter, 1943 | | 6 | Species | Taxom |
| Pamphagidae Burmeister, 1840 | Toad grasshopper | 598 | Species | Taxom |
| Pamphagodidae Bolivar, 1884 | | 5 | Species | Taxom |
| Paragryllidae (Desutter-Gra..., 1987) | | 116 | Species | Taxom |
| Paratitanidae Sharov, 1968 | | 11 | Species | Taxom |
| Parmapteridae Aristov & Ra..., 2015 | | 3 | Species | Taxom |
| Paucineuridae Hong, 1980 | | 1 | Species | Taxom |
| Peltoperlidae Claassen, 1931 | Roach stoneflies | 92 | Species | Taxom |
| Perlapsocidae Iraja Pinto ..., 2000 | | 1 | Species | Taxom |
| Perlariopseidae N.D. Siniche..., 1985 | | 46 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 1399 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 442 | Species | Taxom |
| Perlopseidae Martynov, 1940 | | 3 | Species | Taxom |
| Permarrhaphidae Martynov, 1930 | | 1 | Species | Taxom |
| Permelcanidae Sharov, 1962 | | 15 | Species | Taxom |
| Permofulgoridae Tillyard, 1917 | | 1 | Species | Taxom |
| Permophasmatidae Gorochov, 1992 | | 5 | Species | Taxom |
| Permophilidae Tillyard, 1924 | | 5 | Species | Taxom |
| Permoraphidiidae Tillyard, 1932 | | 3 | Species | Taxom |
| Permotermopsidae Martuinov, 1937 | | 8 | Species | Taxom |
| Petrablattinidae Durden, 1969 | | 11 | Species | Taxom |
| Phalangopsidae (Chopard, 1949) | Spider cricket | 578 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 1239 | Species | Taxom |
| Phasmomimidae Sharov, 1968 | | 31 | Species | Taxom |
| Phenopteridae Carpenter, 1950 | | 2 | Species | Taxom |
| Phoberoblattidae Durden, 1969 | | 35 | Species | Taxom |
| Phylliidae Redtenbacher, 1906 | Leaf insects | 151 | Species | Taxom |
| Phyllodromiidae (Brunner von ..., 1865) | | 1 | Species | Taxom |
| Phyloblattidae Schneider, 1983 | | 17 | Species | Taxom |
| Platyperlidae Sinitshenkova, 1982 | | 10 | Species | Taxom |
| Pneumoridae Stål, 1873 | Bladder grasshopper | 18 | Species | Taxom |
| Podoscirtidae Saussure, 1878 | | 1364 | Species | Taxom |
| Polyphagidae (Walker, 1868) | Desert Cockroaches | 2 | Species | Taxom |
| Ponopterixidae Nel & al., 2014 | | 6 | Species | Taxom |
| Poroblattinidae Handlirsch, 1906 | | 27 | Species | Taxom |
| Prezottophlebiidae Martins-Neto, 2007 | | 1 | Species | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 88 | Species | Taxom |
| Probnidae Sellards, 1909 | | 4 | Species | Taxom |
| Prochresmodidae Vishniakova, 1980 | | 7 | Species | Taxom |
| Proedischiidae Pinto & Orne..., 1978 | | 15 | Species | Taxom |
| Promastacidae Kevan & Wighton, 1981 | | 2 | Species | Taxom |
| Pronemouridae Liu, Sinitsh..., 2011 | | 5 | Species | Taxom |
| Proparagryllacrididae Riek, 1956 | | 17 | Species | Taxom |
| Prophalangopsidae Saussure, 1878 | Grigs | 122 | Species | Taxom |
| Proscopiidae Serville, 1838 | Jumping sticks | 239 | Species | Taxom |
| Protembiidae Tillyard, 1937 | | 26 | Species | Taxom |
| Proteremidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Protocoleidae Tillyard, 1924 | | 7 | Species | Taxom |
| Protodiplatyidae Martynov, 1925 | | 17 | Species | Taxom |
| Protogryllidae Zeuner, 1937 | | 10 | Species | Taxom |
| Protophasmatidae Brongniart, 1885 | | 6 | Species | Taxom |
| Protophasmidae (Scudder, 1885) | | 3 | Species | Taxom |
| Protoprosbolidae Laurentiaux, 1952 | | 1 | Species | Taxom |
| Pruvostitidae Zalessky, 1929 | | 28 | Species | Taxom |
| Prygidae Aristov & Ra..., 2014 | | 2 | Species | Taxom |
| Pseudelcanidae Gorochov, 1987 | | 2 | Species | Taxom |
| Pseudomylacridae Handlirsch, 1906 | | 2 | Species | Taxom |
| Pseudophasmatidae Kirby, 1896 | Striped Walkingsticks | 432 | Species | Taxom |
| Pseudophyllodromiidae Hebard, 1929 | | 1170 | Species | Taxom |
| Psoropteridae Carpenter, 1977 | | 2 | Species | Taxom |
| Pteridomylacridae Handlirsch, 1906 | | 12 | Species | Taxom |
| Pteronarcyidae Enderlein, 1909 | Giant stoneflies | 19 | Species | Taxom |
| Pteroplistidae (Chopard, 1936) | | 25 | Species | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 134 | Species | Taxom |
| Pyrgacrididae Kevan, 1974 | | 2 | Species | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Bushlocusts | 574 | Species | Taxom |
| Raphidiomimidae Vishniakova, 1973 | | 51 | Species | Taxom |
| Raphoglidae Béthoux & al., 2002 | | 2 | Species | Taxom |
| Reculidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Regiatidae Gorochov, 1995 | | 3 | Species | Taxom |
| Rhaphidophoridae Walker, 1869 | And Cave Weta | 835 | Species | Taxom |
| Rhinotermitidae Froggatt, 1897 | Subterranean termites | 430 | Species | Taxom |
| Rigattopteridae Pinto, 1996 | | 1 | Species | Taxom |
| Ripipterygidae Ander, 1939 | Mud crickets | 75 | Species | Taxom |
| Romaleidae Brunner von ..., 1893 | Lubber grasshopper | 544 | Species | Taxom |
| Santanmantidae Grimaldi, 2003 | | 1 | Species | Taxom |
| Scelembiidae Ross, 2001 | | 17 | Species | Taxom |
| Schizoblattidae Durden, 1969 | | 34 | Species | Taxom |
| Schizodactylidae Karny, 1927 | Dune crickets | 8 | Species | Taxom |
| Scopuridae Ueno, 1935 | | 8 | Species | Taxom |
| Serritermitidae Emerson & Kr..., 1975 | | 3 | Species | Taxom |
| Sheimiidae Martynova, 1958 | | 7 | Species | Taxom |
| Siberioperlidae Sinitshenkova, 1983 | | 20 | Species | Taxom |
| Sibyllidae Stål, 1872 | | 3 | Species | Taxom |
| Sinembiidae Huang & Nel, 2009 | | 2 | Species | Taxom |
| Skaliciidae Kukalová, 1964 | | 7 | Species | Taxom |
| Skokidae Vrsansky, 2007 | Jumping cockroach | 1 | Species | Taxom |
| Socialidae Vrsansky, 2010 | | 1 | Species | Taxom |
| Sojanoraphidiidae Martynova, 1952 | | 4 | Species | Taxom |
| Soyanopteridae Aristov & Ra..., 2011 | | 3 | Species | Taxom |
| Spanioderidae Handlirsch, 1906 | | 27 | Species | Taxom |
| Spiloblattidae Handlirsch, 1904 | | 5 | Species | Taxom |
| Spiloblattinidae Handlirsch, 1906 | | 102 | Species | Taxom |
| Spiralizoridae Kocarek, Ho..., 2020 | | 18 | Species | Taxom |
| Spongiphoridae Verhoeff, 1902 | Little Earwigs | 125 | Species | Taxom |
| Stenelytridae Kukalová, 1966 | | 1 | Species | Taxom |
| Stenoneuridae Handlirsch, 1906 | | 0 | Species | Taxom |
| Stenopelmatidae Burmeister, 1838 | Bulldog Raspy Crickets | 49 | Species | Taxom |
| Stereopteridae Carpenter, 1950 | | 3 | Species | Taxom |
| Strephocladidae Martynov, 1938 | | 5 | Species | Taxom |
| Stygnidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Styloperlidae Illies, 1966 | | 15 | Species | Taxom |
| Subioblattidae (Schneider, 1983) | | 1 | Species | Taxom |
| Susumaniidae Gorochov, 1988 | | 6 | Species | Taxom |
| Sylvabestiidae Aristov, 2000 | | 21 | Species | Taxom |
| Sylvaphlebiidae Martynov, 1940 | | 9 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 156 | Species | Taxom |
| Taiophlebiidae Martins-Neto, 2007 | | 2 | Species | Taxom |
| Tanaoceridae Rehn, 1948 | Desert Long-horned Grasshoppers | 4 | Species | Taxom |
| Tarachodidae Handlirsch, 1930 | | 249 | Species | Taxom |
| Tcholmanvissiidae Zalessky, 1934 | | 7 | Species | Taxom |
| Teneopteridae (Richardson, 1956) | | 1 | Species | Taxom |
| Teratembiidae Krauss, 1911 | | 52 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 2399 | Species | Taxom |
| Termopsidae Grassé, 1949 | Damp wood termite | 34 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 2407 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 8318 | Species | Taxom |
| Tettoedischiidae Gorochov, 1987 | | 3 | Species | Taxom |
| Thericleidae Burr, 1899 | | 223 | Species | Taxom |
| Thespidae Giglio-Tos, 1919 | | 191 | Species | Taxom |
| Thoronysididae Handlirsch, 1919 | | 1 | Species | Taxom |
| Thueringoedischiidae Zessin, 1997 | | 3 | Species | Taxom |
| Tillyardembiidae Zalessky, 1938 | | 7 | Species | Taxom |
| Timematidae Caudell, 1903 | Timemas | 27 | Species | Taxom |
| Tococladidae Carpenter, 1966 | | 8 | Species | Taxom |
| Tomiidae Martynov, 1936 | | 1 | Species | Taxom |
| Toxoderidae Giglio-Tos, 1919 | | 58 | Species | Taxom |
| Triassoblattidae Durden, 1969 | | 33 | Species | Taxom |
| Triassomantidae Tillyard, 1922 | | 1 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 171 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 1102 | Species | Taxom |
| Trigonopterygidae Walker, 1870 | | 18 | Species | Taxom |
| Tristiridae Rehn, 1906 | | 33 | Species | Taxom |
| Tryonicidae McKittrick &..., 1965 | | 25 | Species | Taxom |
| Tshekardoperlidae N.D. Siniche..., 1987 | | 5 | Species | Taxom |
| Tuphellidae Gorochov, 1988 | | 8 | Species | Taxom |
| Vitimiidae Sharov, 1968 | | 4 | Species | Taxom |
| Xenoblattidae Durden, 1969 | | 21 | Species | Taxom |
| Xenopteridae Riek, 1955 | | 22 | Species | Taxom |
| Xiphopteridae Sharov, 1968 | | 3 | Species | Taxom |
| Xyronotidae Bolivar, 1909 | Razor-backed bush-hoppers | 4 | Species | Taxom |
| Zorotypidae Silvestri, 1913 | Angel insects | 59 | Species | Taxom |
