| Wacky Races | September 14, 1968 | CBS | 17 |
| Wacky Races | August 14, 2017 | Boomerang | 78 |
| Wakfu | October 30, 2008 | France 4, France 3 | 70 |
| Watership Down | September 28, 1999 | CITV | 39 |
| Watership Down | December 22, 2018 | BBC One, Netflix | 4 |
| Way of Choices | January 31, 2026 | IQIYI | 26 |
| We Baby Bears | January 1, 2022 | Cartoon Network | 47 |
| What a Cartoon! | February 20, 1995 | Cartoon Network | 48 |
| What If...? | August 11, 2021 | Disney+ | 26 |
| Whisker Haven Tales With the Palace Pets | May 22, 2015 | Disney Jr. | 10 |
| Winx Club | January 28, 2004 | Nickelodeon, Rai Yoyo, Rai 2, Nick Jr. Channel, Rai Gulp | 208 |
| Winx Club: The Magic Is Back | September 8, 2025 | Netflix, Rai 2, CBBC | 26 |
| Wisdom of the Gnomes | 1987 | La 1 | 26 |
| Wish Cat | September 12, 2024 | SBS TV | 26 |
| Wish Kid | September 14, 1991 | NBC | 13 |
| Wizards: Tales of Arcadia | August 7, 2020 | Netflix | 10 |
| WondLa | — | — | 14 |
| Wunschpunsch | October 14, 2000 | Jetix, TF1, Fox Kids, Cartoon Network | 52 |
| X-Men | October 31, 1992 | Fox Broadcasting Company, Fox Kids | 76 |
| Xcalibur | September 1, 2001 | YTV | 40 |
| Xiaolin Showdown | November 1, 2003 | The WB, Kids' WB | 52 |
| Yin Yang Yo! | August 26, 2006 | Jetix | 65 |
| Yogi's Space Race | September 9, 1978 | NBC | 13 |
| Yogi's Treasure Hunt | September 6, 1985 | Broadcast syndication | 27 |
| Young Warriors of Koguryo | — | Korean Central Television | 7 |
| Zuzubaland | May 25, 2018 | Boomerang, Cartoon Network, Sistema Brasileiro de Televisão, TV Cultura | 52 |