1 Avatar: The Last Airbender
Avatar: The Last Airbender is an American animated television series that aired for three seasons on Nickelodeon from 2005 to 2008. Avatar: The Last Airbender is set in an Asiatic-like world in which some people are able to manipulate the classical elements by use of psychokinetic variants of Chinese ...read more.
I fully agree with this choice. - Anonymousxcxc
People of all ages can watch this show! It's pure god tier and iconic! - StevenUniverseIsAwesome
By mature do u mean not for people under the age of 5? This is a dumb list - judo8alex
A Masterpiece - JPK
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2 The Legend of Korra
The Legend of Korra is an American animated television series that aired on the Nickelodeon television network from 2012 to 2014. It was created by Bryan Konietzko and Michael Dante DiMartino as a sequel to Avatar: The Last Airbender, which aired from 2005 to 2008.
3 The Ren & Stimpy Show
The Ren & Stimpy Show, often simply referred to as Ren & Stimpy, is an American animated television series created by John Kricfalusi for Nickelodeon.
If you mean mature as in violent, yep, this is the most violent Nick show ever. - naFrovivuS
Sorry I don't see how this is mature its got to much butt jokes and other disguisting hurmour
It has lots of gross and disgusting and creepy humor (still great). - PeeledBanana
4 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.
Mature and hilarious. - EspioTheChameleon
5 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.
6 Drake & Josh
Drake & Josh is an American television sitcom created by Dan Schneider for Nickelodeon. The series follows the lives of two teenage boys with opposite personalities, Drake Parker (Drake Bell) and Josh Nichols (Josh Peck), who become stepbrothers. Both actors previously appeared in The Amanda Show along ...read more.
I can't Stand the Yelling and Screaming and stuff - Bikerninja1997
7 Spongebob Squarepants
SpongeBob SquarePants is an American animated television series created by marine biologist and animator Stephen Hillenburg for Nickelodeon. SpongeBob is currently the most popular show on Nickelodeon, as well as the longest running show, running for 18 years, and is beginning its 11th season. The show ...read more.
How can a show be mature - Selfiefan68
I love spongebob - Bikerninja1997
8 Teenage Mutant Ninja Turtles
9 The Penguins of Madagascar
The Penguins of Madagascar is an American CGI animated television series that has aired on Nickelodeon.
10 Dora the Explorer
Dora the Explorer (2000 - 2015) is an American educational animated TV series created by Chris Gifford, Valerie Walsh, and Eric Weiner in which Dora goes on adventures with her friend, a monkey named Boots.
That's immature. - StevenUniverseIsAwesome
Anyone over 6 years old who still watches this is seriously disturbed.
11 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.
12 Fred: The Show
Fred: The Show is an American television series, created by Lucas Cruikshank that originally aired on Nickelodeon, in the United States from January 16 to August 3, 2012. It was cancelled after the first season due to low scores.
It's not even mature... - StevenUniverseIsAwesome
He's Horrible - Bikerninja1997
This show sucks.
13 Sanjay and Craig
Sanjay and Craig is an American animated television series produced by Nickelodeon. The show is about a 12-year-old boy named Sanjay Patel who owns a talking pet snake named Craig.
Who's messing up my list? - PeeledBanana
14 Fanboy and Chum Chum
Fanboy & Chum Chum is an American 3D CGI animated television series created by Eric Robles for Nickelodeon. It is based on Fanboy, an animated short created by Robles for Nicktoons and Frederator Studios, which was broadcast August 14, 2009 to July 12, 2014 on Random! Cartoons. The series was first ...read more.
15 Marvin Marvin
Marvin Marvin is an American science fiction slapstick comedy television series that aired from November 24, 2012 to April 27, 2013. The series stars Lucas Cruikshank as the title character Marvin Marvin, an alien teenage boy adjusting to human life.
16 My Babysitter's a Vampire
My Babysitter's a Vampire is a Canadian comedy horror television movie starring Vanessa Morgan and Matthew Knight.
Breadwinners is a 2014 animated comedy television series produced by Nickelodeon. It is about the adventures of SwaySway and Buhdeuce, two ducks who drive in a rocket van delivering bread to their customers.
Rugrats is an American animated television series created by Arlene Klasky, Gábor Csupó and Paul Germain for Nickelodeon.
19 Mr. Meaty
Mr. Meaty is a Canadian-American television series created by Jamie Shannon and Jason Hopley. The show centers on two lazy teenage boys named Josh Redgrove and Parker Dinkleman, who work at a fast food restaurant.