| The Smoggies | September 2, 1989 | France 2, ICI Radio-Canada Télé | 52 |
| The Spudragons | — | ICI Radio-Canada Télé | 1 |
| The Terrible Thunderlizards | November 20, 1993 | Fox Broadcasting Company | 36 |
| The Tofus | September 6, 2004 | Jetix, Cartoon Network, France 3 | 26 |
| The Twisted Whiskers Show | October 10, 2010 | Discovery Family | 26 |
| The Wrong Coast | December 3, 2003 | AMC, Crave | — |
| The ZhuZhus | September 12, 2016 | Disney Channel | 26 |
| The Zimmer Twins | — | — | 106 |
| Thomas & Friends: All Engines Go | September 13, 2021 | Cartoon Network, Netflix, Cartoonito | 148 |
| Tigga & Togga | February 16, 2006 | — | — |
| Time Warp Trio | July 9, 2005 | NBC, Discovery Kids | 26 |
| Toad Patrol | October 2, 1999 | Cartoon Network | 26 |
| ToonMarty | May 1, 2017 | Cartoon Network | 20 |
| Toot & Puddle | November 16, 2008 | Nick Jr. Channel | 52 |
| Top Wing | November 6, 2017 | Nickelodeon | 52 |
| Total Drama | July 8, 2007 | Télétoon | 120 |
| Total Drama Island | July 8, 2007 | Cartoon Network | 27 |
| Total Drama Presents: The Ridonculous Race | September 7, 2015 | Cartoon Network, Cartoon Network | 26 |
| Total DramaRama | September 1, 2018 | Cartoon Network, Pop Max | 152 |
| Totally Spies! | November 3, 2001 | TF1, Freeform, Gulli, Télétoon, Cartoon Network, Cartoon Network | 208 |
| Trailer Park Boys: The Animated Series | March 31, 2019 | Netflix | 10 |
| Transformers: Cybertron | July 2, 2005 | Cartoon Network, TV Aichi | 52 |
| Tripping the Rift | March 4, 2004 | Syfy | 39 |
| True and the Rainbow Kingdom | August 11, 2017 | Netflix | 37 |
| True: Magical Friends | June 15, 2018 | Netflix | — |
| True: Wonderful Wishes | June 15, 2018 | Netflix | — |
| Tupu | April 11, 2005 | ZDF, France 3, Disney Channel, Super Écran | 26 |
| Turbo Dogs | October 3, 2008 | CBC Kids, Qubo | 26 |
| Turtle Island | January 3, 2001 | Vrak.TV | 26 |
| Ultraforce | December 21, 1994 | USA Network | 13 |
| Unicorn Academy | November 2, 2023 | — | — |
| Untalkative Bunny | April 15, 2001 | Cartoon Network | 65 |
| Vor-Tech: Undercover Conversion Squad | September 16, 1996 | Broadcast syndication | 13 |
| Watership Down | September 28, 1999 | CITV | 39 |
| Waynehead | October 19, 1996 | Kids' WB | 13 |
| Wayside | June 25, 2007 | Cartoon Network | 26 |
| Weird Years | November 6, 2006 | YTV | 26 |
| Welcome to the Wayne | December 26, 2017 | Nickelodeon | 6 |
| What It's Like Being Alone | June 26, 2006 | CBC Television | 13 |
| What's with Andy? | June 30, 2001 | Télétoon | 78 |
| Wild Kratts | January 3, 2011 | TVOKids, PBS Kids | 179 |
| Willa's Wild Life | 2008 | France 5, YTV, Qubo | 26 |
| Woofy | November 13, 2004 | ICI Radio-Canada Télé, France 5 | 65 |
| World of Quest | March 15, 2008 | The CW, Kids' WB | 26 |
| Wunschpunsch | October 14, 2000 | Jetix, TF1, Fox Kids, Cartoon Network | 52 |
| X-Men | October 31, 1992 | Fox Broadcasting Company, Fox Kids | 76 |
| Xavier Riddle and the Secret Museum | November 11, 2019 | PBS Kids, TVO Media Education Group | 47 |
| Xcalibur | September 1, 2001 | YTV | 40 |
| Xiaolin Chronicles | August 26, 2013 | Disney XD | 26 |
| YaYa and Zouk | September 12, 2015 | Yoopa, ICI Radio-Canada Télé | 146 |
| Yin Yang Yo! | August 26, 2006 | Jetix | 65 |
| Yvon of the Yukon | September 9, 1999 | YTV | 52 |
| Zeke's Pad | December 26, 2008 | Seven Network, YTV | 26 |
| Zeroman | September 11, 2004 | — | 13 |