Nausicaä is a warrior princess and the main protagonist of the film and manga, Nausicaä of the Valley of the Wind.
She is a young woman, petite build but extremely agile and fairly strong. Nausicaä has red hair with red earrings she wears dress-like military shirt. and beige trousers and long boots. At the end of the film she wears a pink dress that is dyed blue from the blood of the ohmu.
She is princess of the Valley of the Wind and is loved by all its residents due to her kindness and loving care for all living things. Nausicaä is seemingly not scared of anything and always remains calm in any situation. Her determination and bravery save the valley and she is a role model to anyone. Nausicaä can read the wind extremely well like her father King Jihl, who is now bed-ridden due to slowly succumbing to the poison from the Toxic Jungle. She flies on a glider called a Mehve or Mowen.
Nausicaa has been a lover of animals all her life and once saved a baby Ohmu as a child. It was found by her father who took it away presumably to have it killed which upset Nausicaä tremendously. However, we learn later in the film the baby was released rather than killed. Nausicaä now has a pet fox squirrel who was rescued from the insects of the Sea of the Decay by Lord Yupa. His name is Teto and he comes everywhere with Nausicaä. Sometimes, Teto hides in her dress during action sequences or rides on her shoulder while she flies.
Nausicaä befriends the Pejite prince, Asbel, and saves both his life and helps his twin sister, Lastelle, although she dies despite Nausicaä's attempts to save her.
Nausicaä finally gives her own life in order to save the people of the Valley of the Wind from an Ohmu stampede. However, her bravery, courage, and compassion stop the Ohmu and she is resurrected by the insects. Upon her resurrection, Nausicaä thank the insects and walk through their glowing golden tentacles as though they were fields in her dress that is drenched blue by their baby's blood, unknowingly fulfilling the one thousand year old prophecy of the blue-cladded savior who will reconnect mankind with the Earth.
- Nausicaä's character was inspired by Disney Princesses.