Hatsune Miku is not only one of the most popular Japanese anime girls, but also a cultural icon in Japan. She is known for her iconic blue hair and signature outfit, which has inspired countless cosplayers and fan art. As the virtual vocalist of the Vocaloid software, Miku has captured the hearts of fans worldwide with her catchy songs and adorable design.1. Hatsune Miku
Next on our list is Lucy Heartfilia from the popular anime series Fairy Tail. While she may not have the typical blue hair color, Lucy's hair has hints of blue and is often seen styled in beautiful curls. Her kind and caring personality, along with her determination and growing strength make her a beloved character among fans.2. Lucy Heartfilia
As one of the main characters in the immensely popular anime Sword Art Online, Asuna Yuuki has gained a huge following for her strong and independent personality. Her long, blue hair and striking blue eyes only add to her charm and make her a fan favorite. Asuna is also known for her impressive sword skills and fierce loyalty to her friends and loved ones.3. Asuna Yuuki
From the widely popular Naruto franchise, we have Hinata Hyuga, a kind and gentle ninja with beautiful blue hair. While she may initially seem shy and timid, Hinata's determination and strength shine through as she becomes a vital member of her team. Her love for the main character, Naruto, has also captured the hearts of many fans.4. Hinata Hyuga
Another Naruto character with blue hair is Sakura Haruno, a skilled ninja and medical ninja in training. While her hair may not be completely blue, Sakura's unique pink and blue locks add to her fierce and confident personality. She is known for her impressive strength and intelligence, making her an important member of her team.5. Sakura Haruno
As one of the main characters in the popular anime and manga series Bleach, Rukia Kuchiki has become a fan favorite for her strong and stoic personality. Her short, blue hair and piercing blue eyes make her stand out among the other characters. Rukia is also a skilled swordswoman and a member of the Soul Society, making her a powerful and respected character.6. Rukia Kuchiki
While she may not be a traditional heroine, Yuno Gasai from the anime and manga series Mirai Nikki has captured the attention of many fans with her striking blue hair and intense personality. She is known for her obsessive love for the main character, Yuki, and her unpredictable and sometimes violent actions. Despite this, Yuno's determination and intelligence make her a formidable opponent.7. Yuno Gasai
From the popular anime and manga series K-On!, we have Mio Akiyama, the bassist of the school band. Her long, blue hair and sweet personality have made her a fan favorite among viewers. While she may initially seem shy and reserved, Mio's talent and passion for music shine through as she becomes a key member of the band.8. Mio Akiyama
As a member of the resistance group in the anime series Code Geass, Kallen Stadtfeld is known for her fierce determination and strong fighting skills. Her short, blue hair and rebellious attitude make her a standout character in the series. Kallen is also half-Japanese and half-Britannian, adding to her complex and interesting background.9. Kallen Stadtfeld
Finally, we have Rei Ayanami from the iconic anime series Neon Genesis Evangelion. As the pilot of the Evangelion Unit-00, Rei is a quiet and mysterious character with beautiful blue hair. While she may not show much emotion, Rei's character development throughout the series has made her a beloved and unforgettable character among fans.10. Rei Ayanami