1 Fairly Odd Parents
The Fairly OddParents is an American animated television series created by Butch Hartman for Nickelodeon.
It's not cancelled, it just got moved to Nicktoons, but yeah, since it's overrated and boring now, that's a good thought.
It's not good anymore ever since they introduced that dog and that Mary Sue. - kcianciulli
2 Kim Possible
Kim Possible is an American animated children's television series created by Bob Schooley and Mark McCorkle for Disney Channel.
3 Invader ZIM
Invader Zim is an American animated television series created by Jhonen Vasquez for Nickelodeon. The series centers on an extraterrestrial named Zim from the planet Irk, and his mission to conquer Earth and enslave the human race along with his malfunctioning robot servant GIR.
This compelling series best describes my childhood. - DarkandSinister
4 Danny Phantom
Danny Phantom is an American animated series created by Butch Hartman for Nickelodeon. It was produced by Billionfold Studios and distributed in Canada by Nelvana, a Canadian animation company. The series follows a teenage boy who, after an accident with an unpredictable portal between the human world ...read more.
5 The Powerpuff Girls
The Powerpuff Girls is an American animated television series created by animator Craig McCracken for Cartoon Network. The main characters of this show are Blossom, Bubbles, and Buttercup. The show is about the Professor Utonium creating three little superhero girls that save the day from villains. ...read more.
6 Phineas and Ferb
Phineas and Ferb is an American animated comedy-musical television series. Originally broadcast as a one-episode preview on August 17, 2007 and again previewed on September 28, 2007, the series officially premiered on February 1, 2008 and ended on June 12, 2015 on Disney Channel, and follows Phineas ...read more.
I never really liked the show in the first place. Same thing happens over and over again. - DarkandSinister
Rugrats is an American animated television series created by Arlene Klasky, Gábor Csupó and Paul Germain for Nickelodeon.
8 Harvey Beaks
Harvey Beaks is an American animated television series created by C.H. Greenblatt for Nickelodeon. Originally announced to premiere on March 29, 2015, the series instead premiered on March 28, 2015 following the 2015 Kids' Choice Awards.
Technically this show is still running, but there hasn't been an episode in a few months - MarvelExpertJK
Futurama is an American animated science fiction sitcom created by Matt Groening for the Fox Broadcasting Company.
10 Gravity Falls
Gravity Falls is an American animated television series produced by Disney Television Animation that first aired on Disney Channel, and then on Disney XD from June 15, 2012 to February 15, 2016. The series follows the adventures of Dipper Pines and his twin sister Mabel in the fictional town of Gravity ...read more.
Why did I have to add this? This show should've already been in here.
11 T.U.F.F. Puppy
T.U.F.F. Puppy is a cartoon created by Butch Hartman. It ran on Nickelodeon from October 2, 2010 until April 4, 2015. It focused on Dudley Puppy and his partner Kitty Katswell as they protected Petropolis under the Turbo Undercover Fighting Force, or T.U.F.F.
Chowder is an American animated television series created by C.H. Greenblatt for Cartoon Network. The series follows an aspiring young child named Chowder and his day-to-day adventures as an apprentice in Chef Mung Daal's catering company.
13 Adventure Time
Adventure Time is an American animated television series created by Pendleton Ward for Cartoon Network. The series follows the adventures of a boy named Finn (voiced by Jeremy Shada) and his best friend and adoptive brother Jake (voiced by John DiMaggio)—a dog with the magical power to change shape ...read more.
This show is not cancelled...yet - Cartoonfan202
Yes I know but they barely put it anymore so it is basically cancelled - MarvelExpertJK
14 Regular Show
Regular Show is an American animated television series created by J. G. Quintel for Cartoon Network that premiered on September 6, 2010. The series revolves around the lives of two friends, a blue jay named Mordecai and a raccoon named Rigby—both employed as groundskeepers at a local park.
15 Hey Arnold
Hey Arnold! is an American animated television series created by Craig Bartlett that aired on Nickelodeon from October 7, 1996 to June 8, 2004. The show centers on a fourth grader named Arnold, who lives with his grandparents in an inner-city boarding house.
16 Camp Lazlo
Camp Lazlo is an American animated television series created by Joe Murray and produced by his company Joe Murray Productions with Cartoon Network Studios.
17 Alvin And The Chipmunks
The 80s cartoon, not the CGI cartoon.
18 Sym-Bionic Titan
Sym-Bionic Titan is an American animated action science fiction television series created by Genndy Tartakovsky, Bryan Andrews, and Paul Rudish for Cartoon Network.
I'd love to see Tartakosky bring back Sym-Bionic Titan for another season and/or conclusion like he recently did with Samurai Jack. - ModernSpongeBobSucks
Catscratch is an American animated television series created by Doug TenNapel (also known for creating Earthworm Jim). It was aired on both Nickelodeon and Nicktoons on July 9, 2005. It is an adaptation of TenNapel's graphic novel, Gear, which is also the name of the cats' monster truck. The series ...read more.
20 El Tigre: The Adventures of Manny Rivera
El Tigre: The Adventures of Manny Rivera is Nickelodeon's first ever flash animation series produced for Nickelodeon and Nicktoons.
This did have a proper ending. - kcianciulli
21 Wander Over Yonder
Wander Over Yonder is an American animated television series on Disney XD. Created by Craig McCracken, it follows Wander and his best friend and steed Sylvia. Adventurous and optimistic, Wander rides across the galaxy to help persons live freely, against the intentions of Lord Hater to rule the universe. ...read more.
22 The X's
23 Making Fiends
Making Fiends is an American comedy horror animated television series. Based upon a web series with the same name, the series ran from October 4, 2008 to November 1, 2008 on Nicktoons Network.
6 Episodes? 6 EPISODES?! Are You Serious, Nick? - kcianciulli
24 Back at the Barnyard
Back at the Barnyard is a Nickelodeon computer-animated television series that is a spin-off from the 2006 film, Barnyard.
Metalocalypse is an American animated television series, created by Brendon Small and Tommy Blacha, which premiered on August 6, 2006 on Adult Swim.
26 Heavy Metal Maniacs
28 The Buzz on Maggie
The Buzz on Maggie is an American animated television series created by Dave Polsky for Disney Channel.
ChalkZone is an American animated television series created by Bill Burnett and Larry Huber for Nickelodeon.
30 The Marvelous Misadventures of Flapjack
The Marvelous Misadventures of Flapjack is an American animated television series created by Thurop Van Orman for Cartoon Network that premiered in North America on June 5, 2008. It stars creator Thurop Van Orman as the voice of Flapjack, a naive young boy who was raised by a whale named Bubbie and ...read more.
32 Teen Titans
Teen Titans is an American animated television series created by Glen Murakami, based on the DC Comics characters of the same name.
33 I Didn't Do It
34 Young Justice
Why did I have to add this? Seriously people.
35 My Life as a Teenage Robot
My Life as a Teenage Robot is an American animated science fantasy television series created by Rob Renzetti for Nickelodeon.
36 Rocko's Modern Life
Rocko's Modern Life is an American animated television series created by Joe Murray for Nickelodeon. The series centers on the surreal life of an anthropomorphic Australian-immigrant wallaby named Rocko as well as his friends: the gluttonous steer Heffer, the neurotic turtle Filburt, and Rocko's faithful ...read more.