| G-Taste | — | — | — |
| G.I. Joe: Sigma 6 | — | Fox Broadcasting Company | 26 |
| GA Geijutsuka Art Design Class | July 6, 2009 | Nippon Television | 12 |
| Ga-Rei: Zero | October 5, 2008 | — | 12 |
| Gabriel DropOut | January 9, 2017 | — | 12 |
| Gacha Girls Corps | January 2027 | — | — |
| Gachiakuta | July 6, 2025 | — | 24 |
| Gad Guard | April 17, 2003 | — | 26 |
| Gag Manga Biyori | February 7, 2005 | Kids Station | 74 |
| Gaiking | April 1, 1976 | — | 44 |
| Gaiking: Legend of Daiku-Maryu | November 12, 2005 | TV Asahi | 39 |
| Gaist Crusher | October 2, 2013 | TV Tokyo | — |
| Gakkatsu! | April 3, 2012 | NHK Educational TV | 25 |
| Gakkyū-ō Yamazaki | December 23, 1997 | TV Tokyo | — |
| Gakkō dewa Oshiete Kurenai Taisetsu na Koto | July 5, 2025 | — | — |
| Gakkō no Kowai Uwasa Shin: Hanako-san ga Kita!! | August 13, 2010 | — | 33 |
| Gakkō no Kowai Uwasa: Hanako-san ga Kita!! | August 15, 1994 | — | 35 |
| Gakuen Alice | October 30, 2004 | NHK Satellite 2 Television | 26 |
| Gakuen Heaven: Boy's Love Hyper | April 1, 2006 | AT-X | 13 |
| Gakuen Utopia Manabi Straight! | January 8, 2007 | — | 12 |
| Galactic Patrol Lensman | October 6, 1984 | — | 25 |
| Galactic Whirlwind Sasuraiger | April 5, 1983 | — | 43 |
| Galaxy Angel | April 7, 2001 | — | — |
| Galaxy Angel Rune | October 1, 2006 | — | 13 |
| Galaxy Cyclone Braiger | October 6, 1981 | — | 39 |
| Galaxy Express 999 | 1978 | — | — |
| Galaxy Fräulein Yuna | September 21, 1995 | — | 2 |
| Galaxy Fräulein Yuna Returns | December 21, 1996 | — | 3 |
| Galaxy High | September 13, 1986 | CBS | 13 |
| Galaxy Kickoff!! | April 3, 2012 | NHK BS Premium | 39 |
| Galerians: Rion | — | — | — |
| Galilei Donna | October 10, 2013 | Fuji Television | 11 |
| Gals Can't Be Kind to Otaku!? | April 8, 2026 | — | 12 |
| Gamba no Bōken | April 7, 1975 | — | 26 |
| Game Center Arashi | April 5, 1982 | Nippon Television | 26 |
| Gamera Rebirth | — | — | — |
| Gamers! | July 13, 2017 | — | 12 |
| Ganbare Genki | July 16, 1980 | — | 35 |
| Ganbare Gonbe | April 14, 1980 | — | 77 |
| Ganbare, Dōki-chan | September 20, 2021 | — | — |
| Ganbare, Kickers! | October 15, 1986 | — | 26 |
| Ganbarist! Shun | July 1, 1996 | Yomiuri Telecasting Corporation | 30 |
| Ganglion | October 3, 2025 | — | — |
| Gangsta | July 1, 2015 | — | 12 |
| Gankutsuou: The Count of Monte Cristo | October 6, 2004 | — | 24 |
| Ganso Tensai Bakabon | October 6, 1975 | — | 103 |
| Gantz | April 13, 2004 | — | 26 |
| Gargantia on the Verdurous Planet | April 7, 2013 | — | 13 |
| Garo: The Animation | October 3, 2014 | — | — |
| Garo: The Crimson Moon | October 10, 2015 | — | — |
| Garo: Vanishing Line | October 6, 2017 | TV Tokyo | 24 |
| Garugaku.: Sei Girls Square Gakuin | April 6, 2020 | — | 50 |
| Gasaraki | October 4, 1998 | TV Osaka | 25 |
| Gatchaman Crowds | July 12, 2013 | — | 24 |
| Gatchaman Fighter | October 7, 1979 | Fuji Television | 48 |
| Gatchaman II | October 1, 1978 | Fuji Television | 52 |
| Gate | July 4, 2015 | — | 24 |
| Gate 2 | 2027 | — | — |
| Gate Keepers | April 3, 2000 | WOWOW | 24 |
| Gate Keepers 21 | April 24, 2002 | — | 6 |