| Perfect Hair Forever | November 7, 2004 | Adult Swim | 9 |
| Pet Alien | January 23, 2005 | Cartoon Network | 52 |
| Peter Pan | December 22, 2012 | France 3 | 52 |
| 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 |
| Phantom 2040 | September 18, 1994 | Broadcast syndication | 35 |
| Phantom Investigators | May 25, 2002 | The WB | 13 |
| Phoebe & Jay | February 2, 2026 | PBS Kids | 10 |
| Phoeni | — | — | — |
| Pickle and Peanut | September 7, 2015 | Disney XD | 42 |
| Pig Goat Banana Cricket | July 18, 2015 | Nickelodeon | 40 |
| Piggsburg Pigs! | September 15, 1990 | Fox Kids | 13 |
| Pigs Next Door | 2000 | — | 13 |
| Pinecone & Pony | April 8, 2022 | Apple TV | — |
| Pink Panther and Pals | March 7, 2010 | Cartoon Network, MGM Television | 26 |
| Pink Panther and Sons | September 8, 1984 | NBC | 26 |
| Pinkalicious & Peterrific | February 19, 2018 | PBS Kids | 81 |
| Pinky and the Brain | September 9, 1995 | The WB | 66 |
| Pinky Dinky Doo | April 5, 2005 | HBO, Univision, CBC Television, Discovery Kids, HBO Max | 104 |
| Pinky Malinky | 2018 | Netflix | 20 |
| Pinky, Elmyra & the Brain | September 19, 1998 | The WB | 13 |
| Pixie and Dixie and Mr. Jinks | October 2, 1958 | Broadcast syndication | 56 |
| Planet of the Taz | — | — | 3 |
| Planet Sheen | October 2, 2010 | Nickelodeon | 26 |
| Planet Unicorn | February 28, 2007 | — | — |
| Pocket Dragon Adventures | September 9, 1996 | Fox Broadcasting Company | 52 |
| Pole Position | September 15, 1984 | CBS | 13 |
| Police Academy | September 1, 1988 | Broadcast syndication | 65 |
| Poochini's Yard | September 7, 2002 | — | 52 |
| Popeye and Son | September 12, 1987 | CBS | 13 |
| Popeye the Sailor | June 10, 1960 | American Broadcasting Company | 220 |
| Poppy & Ziggy | — | YouTube | — |
| Popzilla | September 27, 2009 | MTV | 12 |
| Potato Head Kids | September 24, 1986 | — | 23 |
| Pound Puppies | October 10, 2010 | Discovery Family | 65 |
| Pound Puppies | September 13, 1986 | American Broadcasting Company | 26 |
| Power Players | September 21, 2019 | Cartoon Network | 78 |
| Powerbirds | January 19, 2020 | — | 20 |
| Praise Petey | July 21, 2023 | Freeform | 10 |
| Precious Pupp | October 2, 1965 | NBC | 26 |
| Prep & Landing | — | — | — |
| President Curtis | July 26, 2026 | Adult Swim | — |
| Pretzel and the Puppies | — | — | 18 |
| Primal | October 7, 2019 | Adult Swim | 20 |
| Primos | July 25, 2024 | Disney Channel | 28 |
| Princess | — | — | 2 |
| Princess Power | January 30, 2023 | Netflix | — |
| Problem Child | October 31, 1993 | USA Network | 26 |
| Project G.e.e.K.e.R. | September 14, 1996 | CBS | 13 |
| Pucca | September 18, 2006 | Jetix, Disney XD, MBC TV | 39 |
| Pumpkin Reports | — | — | 52 |
| Puppy Dog Pals | April 14, 2017 | Disney Channel, Disney Jr. | 116 |
| Q-Force | September 2, 2021 | Netflix | 10 |
| Q. T. Hush | September 24, 1960 | — | 100 |
| Quack Pack | September 3, 1996 | Broadcast syndication | 39 |
| Quacula | September 8, 1979 | CBS | — |
| Queer Duck | 2002 | Showtime | 20 |
| Rainbow Brite | June 27, 1984 | Broadcast syndication | 13 |
| Rainbow Butterfly Unicorn Kitty | January 27, 2019 | Nickelodeon, Nicktoons | 26 |