| Gabaloeca Walker, 1870 (Issidae) | Givaka Distant, 1906 (Issidae) |
| Gaetulia Stål, 1864 (Tropiduchidae) | Glabrinotum Ding, 2006 (Delphacidae) |
| Gaja Distant, 1906 (Flatidae) | Glisachaemus† Szwedo, 2007 (Cixiidae) |
| Galela Distant, 1906 (Fulgoridae) | Globularica Stroinski, Gnezdilov & Bourgoin, 2011 (Ricaniidae) |
| Gamergomimus Fennah, 1984 (Nogodinidae) | Glyphotonga Schmidt, 1910 (Nogodinidae) |
| Gamergomorphus Melichar, 1906 (Tropiduchidae) | Glyptodonisia Bourgoin, 1997 (Meenoplidae) |
| Gamergus Stål, 1859 (Tropiduchidae) | Gnezdilovius Meng, Webb & Wang, 2017 (Issidae) |
| Ganus Ding, 2006 (Delphacidae) | Gomeda Distant, 1906 (Flatidae) |
| Garaga Anufriev, 1977 (Delphacidae) | Goneokara Muir, 1913 (Derbidae) |
| Garanta Medler, 2000 (Flatidae) | Goneokarella Fennah, 1952 (Derbidae) |
| Garumna Melichar, 1914 (Tropiduchidae) | Gongistes Fennah, 1969 (Achilidae) |
| Garumnella Wang, Liang & Webb, 2009 (Tropiduchidae) | Goniobenna Emeljanov, 1989 (Cixiidae) |
| Gastererion Perroud & Montrouzier, 1864 (Eurybrachidae) | Goniopsara Metcalf, 1952 (Nogodinidae) |
| Gastrinia Stål, 1859 (Nogodinidae) | Goniopsarites Meng, Wang & Wang, 2014 (Nogodinidae) |
| Gebenna Stål, 1863 (Fulgoridae) | Gonophallus Tsaur & Hsu, 1991 (Cixiidae) |
| Gedanochila† Brysz & Szwedo, 2022 (Achilidae) | Gordiacea Metcalf, 1948 (Achilidae) |
| Gedanotropis† Szwedo & Stroinski, 2017 (Tropiduchidae) | Granadus Gnezdilov & Den Bieman, 2018 (Issidae) |
| Gedrosia Stål, 1862 (Eurybrachidae) | Granum Gnezdilov, 2003 (Issidae) |
| Geisha Kirkaldy, 1900 (Flatidae) | Grapaldus Distant, 1914 (Flatidae) |
| Gelastissus Kirkaldy, 1906 (Caliscelidae) | Gravesteiniella Wagner, 1963 (Delphacidae) |
| Gelastocaledonia Löcker & Larivière, 2006 (Cixiidae) | Griphissus Fennah, 1967 (Caliscelidae) |
| Gelastocephalus Kirkaldy, 1906 (Cixiidae) | Griveaudus Stroinski & Swierczewski, 2014 (Flatidae) |
| Gelastodelphax Kirkaldy, 1906 (Delphacidae) | Grynia Stål, 1862 (Tropiduchidae) |
| Gelastopsis Kirkaldy, 1906 (Eurybrachidae) | Gufacies Ding, 2006 (Delphacidae) |
| Gelastyrella Yang, 1994 (Issidae) | Guianaphryna Gnezdilov, 2018 (Issidae) |
| Geraldtonia Distant, 1910 (Flatidae) | Guidelphax Ding, 2006 (Delphacidae) |
| Gergithoides Schumacher, 1915 (Issidae) | Gurrundus Löcker & Larivière, 2006 (Cixiidae) |
| Gergithomorphus Haglund, 1899 (Tropiduchidae) | Guttala Löcker & Larivière, 2006 (Cixiidae) |
| Gergithus Stål, 1870 (Issidae) | Gwurra Linnavuori, 1973 (Caliscelidae) |
| Gesaris† Szwedo, Stroinski & Lin, 2015 (Lophopidae) | Gyaria Stål, 1862 (Flatidae) |
| Gilda Walker, 1870 (Issidae) | Gyariella Schmidt, 1924 (Flatidae) |
| Gilgitia Shakila, 1991 (Dictyopharidae) | Gyarina Melichar, 1901 (Flatidae) |
| Giselia† Haupt, 1956 (Nogodinidae) |
