| Mummies Alive! | September 15, 1997 | Broadcast syndication | 42 |
| My Big Big Friend | 2010 | Treehouse TV, Discovery Kids | 52 |
| My Gym Partner's a Monkey | December 26, 2005 | Cartoon Network | 52 |
| My Little Pony: Friendship Is Magic | October 10, 2010 | Discovery Family, Hub Network | 222 |
| My Robot & I | October 15, 2024 | BabyTV | 20 |
| Mya Go | April 2017 | — | 156 |
| Mysticons | August 28, 2017 | Nicktoons, Nickelodeon | 40 |
| Nanook | 1996 | TF1 | 26 |
| Nature Cat | November 25, 2015 | PBS Kids | 91 |
| Nella the Princess Knight | February 6, 2017 | Nickelodeon, Channel 5, Nick Jr. Channel, TV Cultura | 68 |
| Nellie the Elephant | January 8, 1990 | ITV1 | 30 |
| New Looney Tunes | September 21, 2015 | Boomerang, Cartoon Network | 102 |
| Noah's Island | September 29, 1997 | BBC One | 39 |
| Nouky and Friends | 2006 | RTL Club | 78 |
| Numb Chucks | January 7, 2014 | YTV | 52 |
| Nutri Ventures | September 26, 2012 | RTP2 | 102 |
| O loupeznickém synku Cipískovi | 1972 | — | — |
| Octonauts | September 16, 2010 | British Broadcasting Corporation, CBeebies | 133 |
| Olive the Ostrich | 2011 | Nick Jr. Channel | 104 |
| Olivia | January 24, 2009 | Nick Jr. | 37 |
| Once Upon a Time... Life | December 10, 1986 | Canal+ | 26 |
| Once Upon a Time... Man | 1978 | France Régions 3 | 26 |
| Once Upon a Time... Space | October 2, 1982 | France Régions 3 | 26 |
| Once Upon a Time... The Americas | 1991 | Canal+, France 3 | 26 |
| Once Upon a Time... The Discoverers | January 3, 1994 | France 3 | 26 |
| Once Upon a Time... The Explorers | December 10, 1996 | France 3 | 26 |
| Oopsie Niki | — | — | — |
| Oswald | August 20, 2001 | Nickelodeon, Treehouse TV, Nick Jr. Channel, Tiny Living | 26 |
| Ozzy & Drix | September 14, 2002 | The WB | 26 |
| Pablo the Little Red Fox | September 28, 1999 | CBeebies | 52 |
| Paddington | January 5, 1976 | British Broadcasting Corporation, BBC Children's and Education | 56 |
| Paddington Bear | December 2, 1989 | Broadcast syndication | 13 |
| Papa Dog | — | — | — |
| Paprika | November 18, 2017 | France 5 | 78 |
| Pat the Dog | April 7, 2017 | La Trois | 155 |
| Paw Patrol | August 12, 2013 | Nickelodeon | 254 |
| Peep and the Big Wide World | April 12, 2004 | TLC, Discovery Kids, TVOKids, PBS Kids | 55 |
| Peg + Cat | October 7, 2013 | PBS, PBS Kids | 63 |
| Penn Zero: Part-Time Hero | December 5, 2014 | Disney XD, Disney XD | 35 |
| Pepee | January 2008 | TRT Çocuk | 76 |
| Peppa Pig | May 31, 2004 | Channel 5, Nick Jr. Channel, MediaCorp Channel 5 | 394 |
| Pet Alien | January 23, 2005 | Cartoon Network | 52 |
| Petals | June 1, 1998 | Australian Broadcasting Corporation | 55 |
| Peter Rabbit | December 14, 2012 | France 5 | 51 |
| Philbert Frog | September 24, 1993 | BBC Children's and Education | 13 |
| Phineas and Ferb | August 17, 2007 | Disney Channel, Disney XD | 255 |
| Phoeni | — | — | — |
| Pingu | March 7, 1990 | Schweizer Fernsehen, CBeebies, TV Brasil, BBC Children's and Education, Disney Channel, TV Cultura, Disney Jr., Nick Jr. Brasil, Gloobinho | 157 |
| Pingwings | — | — | — |
| Pink Panther and Pals | March 7, 2010 | Cartoon Network, MGM Television | 26 |
| Pinkalicious & Peterrific | February 19, 2018 | PBS Kids | 81 |
| Pinkfong Wonderstar | June 27, 2019 | KBS 2TV, YouTube Premium | 52 |
| Pinky and the Brain | September 9, 1995 | The WB | 66 |
| Pinocchio and Friends | November 29, 2021 | Rai Yoyo | 26 |
| Pipo, Pepa & Pop | December 2, 2023 | Rai Yoyo, RaiPlay | — |
| Pippi Longstocking | July 4, 1998 | ZDF, SVT1, Cartoon Network | 26 |
| Pirate Express | April 26, 2015 | Cartoon Network | 26 |
| Piripenguins | May 19, 2025 | CBBC, CBeebies | — |
| Pixel Pinkie | August 29, 2009 | Cartoon Network, Nine Network, Disney Channel | — |
| PJ Masks | September 18, 2015 | Disney Channel, Disney Jr. | 151 |