| We Bare Bears | July 27, 2015 | Cartoon Network | 140 |
| We the People | July 4, 2021 | — | — |
| Weather Hunters | September 8, 2025 | PBS Kids | — |
| Weird Years | November 6, 2006 | YTV | 26 |
| Weird-Oh's | September 15, 1999 | Freeform | 13 |
| Welcome to the Wayne | December 26, 2017 | Nickelodeon | 6 |
| Wesh Selender | 2011 | — | 30 |
| What a Cartoon! | February 20, 1995 | Cartoon Network | 48 |
| What are you doing Nini? | — | KBS 2TV | 52 |
| What If...? | August 11, 2021 | Disney+ | 26 |
| What It's Like Being Alone | June 26, 2006 | CBC Television | 13 |
| What's New, Mr. Magoo? | September 10, 1977 | CBS | 16 |
| What's New, Scooby-Doo? | September 14, 2002 | The WB | 42 |
| What's the Big Idea? | March 23, 2013 | France 5 | 52 |
| What's with Andy? | June 30, 2001 | Télétoon | 78 |
| What-a-Mess | December 24, 1979 | British Broadcasting Company Limited | 45 |
| Whatever Happened to... Robot Jones? | July 12, 2002 | Cartoon Network | 13 |
| Wheel Squad | September 6, 2000 | M6 | 39 |
| Wheelie and the Chopper Bunch | September 7, 1974 | NBC | 13 |
| Where My Dogs At? | June 10, 2006 | MTV2 | 8 |
| Where on Earth Is Carmen Sandiego? | February 5, 1994 | Fox Broadcasting Company | 40 |
| Where's Chicky? | 2014 | Gulli, France Télévisions | 208 |
| Where's Huddles? | July 1, 1970 | CBS, Cartoon Network | 10 |
| Where's Waldo? | September 14, 1991 | CBS, ITV | 13 |
| Where's Waldo? | July 20, 2019 | Universal Kids, Peacock | 20 |
| Whiffle & Fuzz | March 24, 2008 | Playhouse Disney | — |
| Whisker Haven Tales With the Palace Pets | May 22, 2015 | Disney Jr. | 10 |
| White Lightning | — | — | 6 |
| Whoopass Stew | — | — | — |
| WhyFly | — | 1+1, PLUSPLUS | 50 |
| Wide-Eye | October 4, 2003 | CBeebies | 26 |
| Widget | September 29, 1990 | USA Network | 65 |
| Wild Grinders | April 27, 2012 | Nicktoons | 52 |
| Wild Instinct | 2001 | M6 | 52 |
| Wild Kratts | January 3, 2011 | TVOKids, PBS Kids | 179 |
| Wild Life | September 26, 2020 | Syfy | — |
| Wild West C.O.W.-Boys of Moo Mesa | September 12, 1992 | American Broadcasting Company | 26 |
| Wilf the Witch's Dog | 2002 | Fox Broadcasting Company, BBC One, La 2, Rai 2 | 26 |
| Willa's Wild Life | 2008 | France 5, YTV, Qubo | 26 |
| Willo the Wisp | September 14, 1981 | BBC One | 26 |
| Willy Fog 2 | 1993 | La 1 | 26 |
| Win or Lose | 2024 | Disney+ | 8 |
| Wing Commander Academy | September 21, 1996 | USA Network | 13 |
| Winky Dink and You | October 10, 1953 | — | — |
| Winsome Witch | October 2, 1965 | NBC | 26 |
| Winston Steinburger and Sir Dudley Ding Dong | January 2, 2017 | — | 52 |
| 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 |
| Wishenpoof! | 2014 | Treehouse TV, Amazon Prime Video | 39 |
| Wishfart | September 5, 2017 | CITV | 40 |
| Wizards: Tales of Arcadia | August 7, 2020 | Netflix | 10 |
| Wobbly Land | — | — | — |
| Wolfboy and the Everything Factory | September 24, 2021 | Apple TV | — |
| Wolverine and the X-Men | January 23, 2009 | Nicktoons | 26 |
| Women Wearing Shoulder Pads | August 17, 2025 | — | — |
| Wonder Pets! | March 3, 2006 | Nickelodeon | 62 |
| Wonder Showzen | March 11, 2005 | MTV2, MTV2 | 16 |