| Lost in Oz | June 26, 2015 | Amazon Prime Video | 26 |
| Louie | October 25, 2006 | France 5 | 117 |
| Louie & Yoko: Build! | 2020 | France 3 | — |
| Lu & the Bally Bunch | March 17, 2023 | Cartoon Network, CBeebies, CBC Kids, RTÉ KIDSjr, HBO Max, Cartoonito, CBC Gem | 76 |
| Ludwig | — | — | — |
| Lulu's Islands | October 5, 2009 | TF1 | 52 |
| Luna Petunia: Return to Amazia | February 2, 2018 | Netflix | — |
| Luo Bao Bei | — | — | 52 |
| Lupi & Baduki | June 17, 2024 | Discovery Kids | — |
| Madeline | September 12, 1993 | Freeform, Treehouse TV, ICI Radio-Canada Télé, France 3 | 59 |
| Maggie and the Ferocious Beast | August 26, 2000 | Cartoon Network | 39 |
| Mama Mirabelle's Home Movies | September 8, 2007 | CBeebies | 104 |
| Mannetje & Mannetje | 1990 | VPRO | 12 |
| Marblegen | — | — | — |
| Marsupilami | September 18, 1993 | CBS | 29 |
| Martha Speaks | September 1, 2008 | PBS Kids, TVO Media Education Group | 96 |
| Marvel's Avengers Assemble | May 26, 2013 | Disney XD | 127 |
| Marvin the Tap-Dancing Horse | March 5, 2000 | Cartoon Network, PBS Kids | 26 |
| Mary, Mungo and Midge | October 7, 1969 | BBC One | 13 |
| Maryoku Yummy | October 11, 2010 | Discovery Family | 26 |
| Masha and the Bear | January 7, 2009 | Russia-1 | 200 |
| Masha's Spooky Stories | 2014 | — | — |
| Masha's Tales | January 1, 2012 | — | — |
| Master Raindrop | 2008 | Seven Network | 26 |
| Matt Hatter Chronicles | October 31, 2011 | CITV | 52 |
| Max & Ruby | May 3, 2002 | Treehouse TV | 130 |
| Maxie's World | September 14, 1987 | Broadcast syndication | 32 |
| Maya the Bee | September 5, 2012 | ZDF, Universal Kids, NBC Kids, Sprout | 130 |
| Meatballs & Spaghetti | September 18, 1982 | CBS | 21 |
| Megas XLR | 2002 | Cartoon Network | 26 |
| Meine Freundin Conni | June 13, 2012 | KiKA | 52 |
| Men in Black: The Series | October 11, 1997 | CBS, The WB | 53 |
| Metalheads | September 1, 2003 | — | 26 |
| Mickey Mouse Clubhouse | May 5, 2006 | Playhouse Disney, Disney Channel, Disney Jr. | 125 |
| Mickey Mouse Funhouse | August 20, 2021 | Disney Jr. | 85 |
| Mickey Mouse Mixed-Up Adventures | January 15, 2017 | Disney Jr. | 87 |
| Middle School Moguls | September 2, 2019 | Nickelodeon | — |
| Middlemost Post | July 9, 2021 | Nickelodeon | 33 |
| Miffy and Friends | April 7, 2002 | Katholieke Radio Omroep | 80 |
| Mighty Little Bheem: Kite Festival | 2021 | Netflix | — |
| Mike the Knight | September 8, 2011 | Treehouse TV | 128 |
| Mike, Lu & Og | November 12, 1999 | Cartoon Network | 26 |
| Milly, Molly | 2006 | — | 26 |
| Milo | 2003 | France 5 | — |
| Miniforce | — | Korea Educational Broadcasting System | — |
| Minnie's Bow-Toons | November 14, 2011 | Disney Channel, Disney Jr. | 40 |
| Minuscule | October 18, 2006 | Disney Channel, France 2, MBC 2, JeemTV | 78 |
| Miraculous: Tales of Ladybug & Cat Noir | September 1, 2015 | TF1, EBS 1TV | 183 |
| Moka's Fabulous Adventures! | January 4, 2020 | Gulli | 78 |
| Molly of Denali | July 15, 2019 | PBS, PBS Kids | 67 |
| Momonsters | March 20, 2020 | Clan | 104 |
| Mona the Vampire | September 13, 1999 | YTV | 65 |
| Monster High | October 6, 2022 | Nickelodeon | 33 |
| Monster Shaker | July 8, 2024 | Gulli, Clan | 51 |
| Monsuno | February 23, 2012 | Nicktoons | 65 |
| Moomin | April 12, 1990 | TV Tokyo | 104 |
| Motown Magic | November 20, 2018 | Netflix | 25 |
| Mouk | September 19, 2011 | France 5 | 104 |
| Mouss & Boubidi | June 29, 2009 | ICI Radio-Canada Télé, France 3, France Ô | 52 |
| Mr. Hiccup | 1983 | — | 39 |