| Gary and His Demons | April 15, 2018 | Mondo Media, VRV | — |
| Gary the Rat | June 26, 2003 | Spike TV | 13 |
| Gaspard and Lisa | May 1, 2011 | Universal Kids | 51 |
| Gaston | — | France 3 | 78 |
| Gattu Battu | — | Nickelodeon India | — |
| Gawayn | 2009 | France 3 | 52 |
| Gemusetto Machu Picchu | April 1, 2019 | Adult Swim | 20 |
| Generation O! | August 26, 2000 | The WB | 13 |
| Generator Rex | April 23, 2010 | Cartoon Network | 60 |
| Geo Mecha | — | — | — |
| George and Martha | April 1, 1999 | YTV, Qubo, HBO Family | 26 |
| George of the Jungle | June 29, 2007 | Télétoon, Cartoon Network | 52 |
| George of the Jungle | September 9, 1967 | American Broadcasting Company | 17 |
| Geronimo Stilton | September 15, 2009 | Rai 2 | 78 |
| Geschichten aus Mullewapp | 2011 | — | — |
| Get 'Em Tommy! | December 19, 2016 | Cartoon Network | — |
| Get Ace | January 19, 2014 | Network 10 | 52 |
| Get Blake! | March 2, 2015 | Gulli | 52 |
| Get Ed | September 19, 2005 | Jetix, Disney XD, Ajyal | 26 |
| Get Rolling With Otis | October 8, 2021 | Apple TV | 8 |
| Ghost Mecard | — | Daekyo Kids TV | — |
| Ghostbusters | September 8, 1986 | Broadcast syndication | 65 |
| GhostForce | 2021 | Disney Channel | 52 |
| Gideon | — | TF1 | 60 |
| GigaBlaster | June 17, 2019 | Gloob | 104 |
| GigaBuilder | — | EBS 1TV | 20 |
| Gigantosaurus | January 18, 2019 | Disney Channel, Disney Jr., France 5 | 26 |
| Gigglebug | — | — | 39 |
| Gilligan's Planet | September 18, 1982 | CBS | 13 |
| Gino the Chicken: lost in the net | 2006 | — | — |
| Girls of Olympus | — | RaiPlay | 26 |
| Girlstuff/Boystuff | 2002 | Nicktoons, Nick Jr., YTV | 33 |
| Gladiator Academy | 2002 | — | 26 |
| Glammys School of Fashion Vlog | — | — | — |
| Glenn Martin, DDS | August 17, 2009 | Nickelodeon, Nick at Nite | 40 |
| Glitch Techs | February 21, 2020 | Netflix | 19 |
| Glumpers | — | — | 104 |
| Go Astro Boy Go! | 2019 | — | 52 |
| Go Away, Unicorn! | September 7, 2018 | — | 15 |
| Go Go Around Italy | — | — | 20 |
| Go Go Giwas | — | Public Television Service | — |
| Go Go Gophers | — | CBS | — |
| Go Player | — | CCTV-14 Children | 52 |
| Go! Go! Cory Carson | January 4, 2020 | Netflix | 21 |
| Go, Diego, Go! | September 6, 2005 | Nickelodeon, Nick Jr. Channel | 86 |
| Go, Dog. Go! | January 26, 2021 | Netflix | 40 |
| Goblin Capture: The Legend Of Treasure Mountain | — | ANIBOX | 26 |
| Goblin Hill | — | Tooniverse | — |
| God Troubles Me | July 21, 2019 | — | 36 |
| God, the Devil and Bob | March 9, 2000 | NBC | 13 |
| Godoongdoong Symphony | April 21, 2022 | KBS 1TV | — |
| Godzilla | September 9, 1978 | NBC, TV Tokyo | 26 |
| Godzilla: The Series | September 12, 1998 | Fox Broadcasting Company, Fox Kids | 40 |
| Gofrette | 2007 | Canadian Broadcasting Corporation | 52 |
| Golan the Insatiable | November 23, 2013 | Fox Broadcasting Company | 12 |
| Golden Axe | September 16, 2026 | Paramount+ | — |
| Goldie & Bear | September 12, 2015 | Disney Jr. | 45 |
| Goober and the Ghost Chasers | September 8, 1973 | American Broadcasting Company | 16 |
| Good Morning, Mickey! | April 18, 1983 | Broadcast syndication | 80 |
| Good Times: Black Again | April 12, 2024 | — | 10 |