| PB&J Otter | March 15, 1998 | Playhouse Disney, Disney Jr. | 65 |
| Peacemaker Kurogane | October 7, 2003 | — | 24 |
| Peach Boy Riverside | July 1, 2021 | — | 12 |
| Peach Girl | January 8, 2005 | TV Tokyo | 25 |
| Peanuts | November 9, 2014 | NHK Educational TV | 104 |
| Pearlie | September 19, 2009 | Network 10, YTV | 26 |
| Pecola | September 3, 2001 | Cartoon Network | 26 |
| Peep and the Big Wide World | April 12, 2004 | TLC, Discovery Kids, TVOKids, PBS Kids | 55 |
| PeePooDo & The Super Fuck Friends | — | Blackpills | 18 |
| Peg + Cat | October 7, 2013 | PBS, PBS Kids | 63 |
| Pelswick | October 2, 2000 | CBC Television | 26 |
| Penguin Musume | — | — | — |
| Penguindrum | July 8, 2011 | — | 24 |
| Penn Zero: Part-Time Hero | December 5, 2014 | Disney XD, Disney XD | 35 |
| People's Palace | — | YouTube | 15 |
| Pepee | January 2008 | TRT Çocuk | 76 |
| Peppa Pig | May 31, 2004 | Channel 5, Nick Jr. Channel, MediaCorp Channel 5 | 394 |
| Pepper Ann | September 13, 1997 | American Broadcasting Company, Disney Channel, UPN | 65 |
| Percy's Tiger Tales | December 22, 2012 | — | 52 |
| Perfect Hair Forever | November 7, 2004 | Adult Swim | 9 |
| Perfect World | — | — | — |
| Perman | April 2, 1967 | — | 54 |
| Perman | April 4, 1983 | — | 526 |
| Peropero Sparkles | — | — | — |
| Persia, the Magic Fairy | July 6, 1984 | — | 48 |
| Persona 4: The Animation | October 7, 2011 | — | 26 |
| Persona 4: The Golden Animation | July 10, 2014 | — | 12 |
| Persona 5: The Animation | April 8, 2018 | — | 26 |
| Persona: Trinity Soul | January 5, 2008 | — | 26 |
| Personal Computer Travel Tanteidan | October 1, 1981 | — | — |
| PES: Peace Eco Smile | — | — | — |
| Pet | January 6, 2020 | — | 13 |
| Pet Alien | January 23, 2005 | Cartoon Network | 52 |
| Pet Shop of Horrors | March 2, 1999 | — | 4 |
| Petals | June 1, 1998 | Australian Broadcasting Corporation | 55 |
| Petals of Reincarnation | April 3, 2026 | — | 13 |
| Peter | — | — | 26 |
| Peter Grill and the Philosopher's Time | July 11, 2020 | — | 24 |
| Peter Pan | December 22, 2012 | France 3 | 52 |
| Peter Pan | — | — | — |
| Peter Pan and the Pirates | September 8, 1990 | Fox Kids | 65 |
| Peter Potamus | September 16, 1964 | Broadcast syndication | 27 |
| Peter Rabbit | December 14, 2012 | France 5 | 51 |
| Petit Petit Muse | January 27, 2008 | KBS 1TV | 26 |
| Petite Princess Yucie | September 30, 2002 | NHK Satellite 2 Television | 26 |
| Petopeto-san | July 9, 2005 | — | 13 |
| Phantasy Star Online 2 the Animation | January 8, 2016 | — | — |
| Phantasy Star Online 2: Episode Oracle | October 7, 2019 | — | 25 |
| Phantom 2040 | September 18, 1994 | Broadcast syndication | 35 |
| Phantom Busters | 2027 | — | — |
| Phantom in the Twilight | July 10, 2018 | — | 12 |
| Phantom Investigators | May 25, 2002 | The WB | 13 |
| Phantom of the Idol | July 1, 2022 | — | 10 |
| Phantom Quest Corp. | — | — | 4 |
| Phantom Spirits | — | TF1 | 52 |
| Phantom Thief Jeanne | February 13, 1999 | TV Asahi | 44 |
| Phantom: Requiem for the Phantom | April 2, 2009 | — | — |
| Phantom: The Animation | February 27, 2004 | — | 3 |
| Phanton Thief Reinya | January 9, 2010 | — | 12 |
| Phi Brain: Puzzle of God | October 2, 2011 | NHK Educational TV | 75 |