Bluey is the beloved blue-haired cartoon character from the popular Australian children's TV show of the same name. This energetic and curious six-year-old Blue Heeler pup is known for her playful imagination and her love for her family and friends.1. Bluey
The bubbly and outgoing Mabel Pines from Gravity Falls is not only known for her colorful and quirky fashion sense, but also for her iconic blue hair. She is always up for an adventure and her positive attitude and silly antics make her a favorite among fans.2. Mabel Pines
With her bright blue hair and magical powers, Star Butterfly from Star vs. the Forces of Evil is a force to be reckoned with. She is a princess from another dimension who is sent to Earth to learn how to use her magic wand, and along the way, she learns valuable lessons about friendship and responsibility.3. Star Butterfly
In the Pixar film Inside Out, Sadness is one of the five emotions that resides inside the mind of 11-year-old Riley. Her blue hair reflects her role as the emotion of sadness, but she proves to be an important and essential part of Riley's emotional journey.4. Sadness (Inside Out)
Raven from Teen Titans is a powerful half-demon, half-human superhero with striking blue hair. Her quiet and serious demeanor often clashes with her more outgoing teammates, but her powers of telekinesis and empathic abilities make her a valuable member of the team.5. Raven (Teen Titans)
Amethyst is one of the Crystal Gems and a main character in the animated series Steven Universe. Her wild and carefree personality is reflected in her messy, violet-blue hair. She loves to have fun and often provides comic relief to the show, but she also has a deep emotional side and a strong bond with her fellow Gems.6. Amethyst (Steven Universe)
Vanellope von Schweetz from Wreck-It Ralph may have started off as a glitch in the game, but she quickly became a fan favorite with her spunky attitude and signature blue hair. She is determined to prove herself and become a real racer, and her friendship with Ralph is heartwarming and hilarious.7. Vanellope von Schweetz
Princess Bubblegum, or PB for short, is the ruler of the Candy Kingdom in the animated series Adventure Time. Her long, bubblegum pink hair often has a blue tint to it, reflecting her scientific and analytical nature. She is a skilled inventor and a powerful leader, but she also has a softer side when it comes to her friendship with Finn and Jake.8. Princess Bubblegum
Frankie Foster is the kind and responsible older sister of Mac in Foster's Home for Imaginary Friends. Her vibrant blue hair and stylish outfits make her stand out, but it's her caring and nurturing personality that makes her a role model for younger viewers.9. Frankie Foster
Ami Mizuno, also known as Sailor Mercury, is a member of the Sailor Scouts in the popular anime and manga series Sailor Moon. With her blue hair and signature visor, she is the brains of the group and uses her intelligence and water-based powers to outsmart her enemies.10. Sailor Mercury