| Gokū no Daibōken | January 7, 1967 | — | 39 |
| Golden Boy | October 27, 1995 | — | 6 |
| Golden Kamuy | April 9, 2018 | Tokyo MX | 24 |
| Golden Time | October 3, 2013 | — | 24 |
| Golden Warrior Gold Lightan | March 1, 1981 | TV Tokyo | 52 |
| Goldfish Warning! | January 12, 1991 | — | 54 |
| Gon | 2012 | — | — |
| Gonna be the Twin-Tail!! | October 9, 2014 | — | 12 |
| Good Luck Girl! | July 5, 2012 | — | 13 |
| Good Luck! Ninomiya-kun | October 4, 2007 | — | 12 |
| Good Night World | — | — | — |
| Goodbye, Dragon Life | October 11, 2024 | — | 12 |
| Goodbye, Lara | July 6, 2026 | — | 12 |
| Gordian Warrior | October 7, 1979 | TV Tokyo | 73 |
| GoShogun | July 3, 1981 | TV Tokyo | 26 |
| Gosick | January 7, 2011 | — | 24 |
| Goulart Knights | — | — | — |
| Gourmet Girl Graffiti | January 9, 2015 | — | 12 |
| Gowappa 5 Gōdam | April 4, 1976 | TV Asahi | 36 |
| GR: Giant Robo | January 19, 2007 | — | — |
| Granbelm | July 5, 2019 | — | 13 |
| Granblue Fantasy The Animation | January 21, 2017 | — | — |
| Grand Blue | July 14, 2018 | MBS | 36 |
| Grand Blues! | October 8, 2020 | — | 12 |
| Grander Musashi | April 2, 1997 | TV Tokyo | 64 |
| Grandpa and Grandma Turn Young Again | April 7, 2024 | — | 11 |
| Grandpa Danger | April 4, 2004 | TV Tokyo | 51 |
| Graveyard Kitaro | 2008 | — | — |
| Gravion | October 7, 2002 | — | 25 |
| Gravitation | October 4, 2000 | WOWOW | 13 |
| Great Dangaioh | April 5, 2001 | — | 13 |
| Great Mazinger | September 8, 1974 | Fuji Television | 56 |
| Great Pretender | June 2, 2020 | Netflix | 23 |
| Great Teacher Onizuka | June 30, 1999 | Fuji Television | 43 |
| Green Green | July 12, 2003 | — | 12 |
| Green Legend Ran | November 25, 1992 | — | 3 |
| Gregory Horror Show | October 1, 1999 | — | — |
| Grenadier: The Senshi of Smiles | October 15, 2004 | WOWOW | 12 |
| Grendizer | October 5, 1975 | Fuji Television | 74 |
| Grendizer U | July 5, 2024 | — | 13 |
| Grimgar of Fantasy and Ash | January 11, 2016 | Tokyo MX | 12 |
| Grimm's Fairy Tale Classics | October 21, 1987 | TV Asahi | — |
| Grimms Notes: The Animation | January 10, 2019 | — | 12 |
| Grimoire of Zero | April 10, 2017 | — | 12 |
| Grisaia: Phantom Trigger | January 2, 2025 | — | — |
| Groizer X | July 1, 1976 | — | 36 |
| Ground Control to Psychoelectric Girl | April 15, 2011 | — | 12 |
| Ground Defense Force! Mao-chan | July 3, 2002 | — | 26 |
| Grow Up Show | July 5, 2026 | — | 13 |
| Gu Gu Ganmo | March 18, 1984 | — | 50 |
| Guardian of Darkness | — | — | — |
| Gudetama: An Eggcellent Adventure | 2022 | Netflix | — |
| Gugure! Kokkuri-san | October 5, 2014 | — | 12 |
| Guilty Crown | October 13, 2011 | — | 22 |
| Guilty Gear Strive: Dual Rulers | April 5, 2025 | — | 8 |
| Guin Saga | April 5, 2009 | NHK Satellite 2 Television | 26 |
| Gulliver Boy | January 8, 1995 | — | — |
| Gun Frontier | March 28, 2002 | — | 13 |
| Gun Sword | July 4, 2005 | — | 26 |
| Gunbuster | October 7, 1988 | — | 6 |