| Gate Keepers 21 | April 24, 2002 | — | 6 |
| Generator Gawl | October 6, 1998 | TV Tokyo | 12 |
| Genji Tsūshin Agedama | October 3, 1991 | — | — |
| Getsumento Heiki Mina | January 13, 2007 | — | 11 |
| Getter Robo G | May 15, 1975 | — | 39 |
| Ghost Hound | October 18, 2007 | WOWOW | 22 |
| Ghost in the Shell: Arise | — | — | — |
| Ghost in the Shell: SAC_2045 | April 23, 2020 | Netflix | 24 |
| Ghost in the Shell: Stand Alone Complex | October 1, 2002 | SkyChannel | 52 |
| Giant Gorg | April 5, 1984 | TV Tokyo | 26 |
| Gigantor | October 20, 1963 | Fuji Television | 97 |
| Gilgamesh | October 2, 2003 | — | 26 |
| Gin'iro no Olynssis | October 6, 2006 | — | — |
| Ginga Hyōryū Vifam | October 21, 1983 | MBS | 46 |
| Ginga Sengoku Gun'yūden Rai | April 8, 1994 | TV Tokyo | 52 |
| Girls' Last Tour | October 6, 2017 | — | 12 |
| Girly Air Force | January 10, 2019 | AT-X | 12 |
| Glass Fleet | April 4, 2006 | — | 26 |
| Gnosia | October 12, 2025 | — | 21 |
| God Eater | July 12, 2015 | — | 13 |
| GR: Giant Robo | January 19, 2007 | — | — |
| Green Legend Ran | November 25, 1992 | — | 3 |
| Guardian of Darkness | — | — | — |
| Gun Frontier | March 28, 2002 | — | 13 |
| Gunbuster | October 7, 1988 | — | 6 |
| Gundam Wing: Endless Waltz | — | — | — |
| Gungrave | October 6, 2003 | TV Tokyo | 26 |
| Gurren Lagann | April 1, 2007 | TX Network | 27 |
| Gyakuten! Ippatsuman | February 13, 1982 | Fuji Television | 58 |
| Hand Maid May | July 6, 2000 | — | — |
| Hand Shakers | January 10, 2017 | — | 12 |
| Hanoka | August 7, 2006 | — | 12 |
| Harlock Saga | January 25, 1999 | — | 6 |
| Heat Guy J | October 1, 2002 | — | 25 |
| Heavenly Delusion | April 1, 2023 | Tokyo MX | 13 |
| Heavy Object | October 2, 2015 | — | 24 |
| Heroic Age | April 1, 2007 | TV Tokyo | 26 |
| Hoshi no Ko Chobin | April 5, 1974 | TBS Television | 26 |
| Hurricane Polymar | October 4, 1974 | — | 26 |
| Hyper Police | April 3, 1997 | — | 25 |
| Hyōga Senshi Gaislugger | April 12, 1977 | — | 20 |
| I'm the Evil Lord of an Intergalactic Empire! | April 6, 2025 | — | 12 |
| Ice | May 25, 2007 | — | 3 |
| Iczer Girl Iczelion | January 27, 1995 | — | 2 |
| Id – Invaded | January 5, 2020 | — | 13 |
| ID-0 | April 9, 2017 | — | 12 |
| Indian Summer | October 15, 2007 | — | 3 |
| Infinite Ryvius | October 6, 1999 | TV Tokyo | 26 |
| Innocent Venus | July 26, 2006 | — | — |
| Inuyashiki | October 12, 2017 | Fuji Television | 11 |
| Invincible King Tri-Zenon | October 14, 2000 | — | 22 |
| Invincible Super Man Zambot 3 | October 8, 1977 | Nagoya Broadcasting Network | 23 |
| Irina: The Vampire Cosmonaut | October 4, 2021 | — | 12 |
| Iriya no Sora, UFO no Natsu | February 25, 2005 | — | 6 |
| Itadakiman | April 9, 1983 | Fuji Television | 20 |
| Japan Sinks: 2020 | — | — | — |
| Jetter Mars | February 3, 1977 | — | 27 |
| Jing: King of Bandits | May 15, 2002 | NHK Satellite 2 Television | 16 |
| Juden Chan | June 25, 2009 | — | 12 |
| Jura Tripper | April 2, 1995 | TV Tokyo | 39 |