Nickelodeon Cartoons are some of the most beloved animated series that stole millions of viewers' hearts all over the globe. These highly entertaining and surprisingly thought-provoking stories and characters have been inspiring and motivating Nickelodeon fans for many decades now. Some of these shows gained such a big fan following that they even got reboots and became part of the gaming world when they were also turned into Nickelodeon All-Star Brawl characters.

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These colorful and imaginative cartoons offered something new and different for their audiences thanks to the creators who masterfully crafted not only exciting and touching storylines but relatable and lovable characters. These iconic Nickelodeon series are considered some of the best animated shows of all time and influenced millions of animation artists all over the globe.

7 Aaahh!!! Real Monsters

Oblina, Ickis, and Krumm in Aaahh!!! Real Monsters

Aaahh!!! Real Monsters is one of the most creative and fun Nickelodeon shows that deserves a reboot. This dark children's television series was one of the weirdest and most wonderful cartoons on Nickelodeon that had a surprisingly large number of adult viewers as well.

Aaahh!!! Real Monsters is one of the most hilarious and spooky Nickelodeon cartoons, and its story revolved around the life of three young monsters Krumm, Oblina, and Ickis who were trying to turn into their scariest selves at the infamous Monster Academy. However, the monster friends struggled to scare humans and their attempts always resulted in hilarious scenarios.

6 The Adventures Of Jimmy Neutron: Boy Genius

Jimmy in The Adventures Of Jimmy Neutron Boy Genius

Before the young Sheldon Cooper, there was another important genus boy on TV who showed kids that learning and science can be fun, and his name was Jimmy Neutron. The Adventures Of Jimmy Neutron: Boy Genius was one of the most motivating and imaginative Nickelodeon cartoons filled with fun adventures, robots, and all sorts of futuristic gadgets.

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Naturally, Jimmy was the mastermind behind every brilliant invention, and he never met a problem he couldn't solve. Jimmy went on many fun adventures with his loyal robot dog Goddard and his two friends Sheen and Carl. Even though Jimmy was a mischievous little genius he tried to live a normal life just like all other kids. While this show was for kids it can be fun for adults who are young at heart and are looking for a comforting Nickelodeon show.

5 The Wild Thornberrys

The Thornberrys in The Wild Thornberrys

The Wild Thornberrys is one of the most imaginative Nickelodeon cartoons that's perfect for adults and kids alike. This fun show, perfectly balanced fantasy with educational real-life facts and dealt with many important themes regarding environmental issues and the struggles of growing up among many other things. They also had brilliant voice actors and fans could even enjoy one of the best voices by Tim Curry.

Thornberry fans could even learn fun facts about our planet and its wildlife while following the adventures of Eliza and her nature and travel-loving family. Since Eliza's parents were wildlife filmmakers they were constantly on the road and visiting some of the most breathtaking and remote locations on Earth. Eliza soon realized she was capable of talking to animals, and she used her special ability to get into and out of unforgettable adventures.

4 Avatar: The Last Airbender

Aang in Avatar The Last Airbender

Avatar: The Last Airbender quickly became one of the most beloved and iconic Nickelodeon shows with a huge fan base all over the world. It's one of the few shows that even anime lovers appreciate, and it was one of the most well-crafted series on Nickelodeon. It's not only one of the best Nickelodeon cartoons but one of the best animated series of all time.

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It has a beautiful art style as well as masterfully crafted world-building. However, the show shines the brightest when it comes to storytelling and character development. While it's a thoroughly entertaining show it deals with all kinds of adult themes including mental health, genocide, and war just to mention a few. Avatar fans followed the emotional and thrilling adventures of Aang who traveled around the globe with his friends and met some of the most powerful waterbenders and visited other bending nations to fulfill his destiny and bring back peace.

3 Rugrats

kids in Rugrats

Rugrats is one of Nickelodeon's most beloved shows that soon became one of the most popular classic cartoons of all time. While it might seem like a simple kids' show, Rugrats actually has important messages and some of the greatest and most hilarious role models in animation. It also provides a unique perspective and has charming and vibrant animation.

This entertaining and feel-good Nickelodeon cartoon reveals what the world and adults look like from a baby's point of view. The story follows a group of babies who get into all kinds of fun and sometimes spooky adventures while their clueless parents aren't watching. Rugrats is one of the most visually fun shows and fans can even learn about plenty of fun Rugrats facts that prove what a special cartoon Rugrats really is.

2 SpongeBob SquarePants

SpongeBob in SpongeBob SquarePants

SpongeBob SquarePants is one of the most popular and iconic Nickelodeon cartoons of all time with the single most optimistic character in animation. SpongeBob's inspiring and motivational attitude towards his job and the annoying and mean-spirited people in his life turned him into one of the most beloved pop-culture icons.

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This show is also one of the few Nickelodeon cartoons with an immense adult fan base. Everything in the show is about boosting viewers' moods including its quirky humor, colorful and fun world-building, and wonderfully weird characters, and there are even fun SpongeBob SquarePants foods that inspire viewers to turn some of the most quirky and colorful imaginary dishes into reality.

1 Hey Arnold!

Helga, Arnold, and Gerald in Hey Arnold!

Hey Arnold! is one of Nickelodeon's best comedy cartoons of all time and is one of the most iconic kids' shows of the 90s. This creative and feel-good Nickelodeon series has relatable and interesting characters, sophisticated humor, and a great world-building that shows the world of adults from a unique perspective.

It's one of the most rewatchable Nickelodeon cartoons since it's perfect not only for kids and teens but adults as well. The story focuses on a young fourth-grader named Arnold who lives with his grandparents in Hillwood. Fans follow Arnold and his friends' fun and often emotional adventures as they're trying to deal with everyday problems and the challenges of young adult life.

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