Ino Yamanaka (山中いの, Yamanaka Ino) is a kunoichi of Konohagakure's Yamanaka clan. She and her fellow members of Team Asuma are their generation's Ino–Shika–Chō trio. She later becomes the head of the Konoha Barrier Team and a member of the Analysis Team.

Ino is a fair-skinned woman of average height with light green eyes (blue in the anime) and long, platinum blonde hair with bangs framing the right side of her face. As a young child, her hair was short. In the beginning of Part I, her hair grew to hip-length and is tied into a high ponytail. During the Chūnin Exams, Ino cropped her hair to shoulder-length, often keeping it up in a bun. By Part II, her hair grew back to hip-length ponytail with her bangs became thicker, hiding most of her right eye. In the Blank Period, her hair is hung loosely and extends to her calves; as an adult, her hairstyle returns to its shape in Part II, but her ponytail reaches her upper-back and sports a black clip.

Ino regularly wears a purple outfit consisting of a high-collared blouse and matching apron skirt. In Part I, she sports this attire with bandages on her abdomen and legs, small hoop-earrings, her forehead protector worn as a belt, and for a time, white arm warmers. In Part II, Ino's outfit is slightly more revealing as she discards her forehead protector and bandages while exposing her midriff and wears mesh armour on her thighs, elbows and knees. She also replaces her hoop earrings with studs, a gift from Asuma, and sports a red hair clip on her left temple. During the Fourth Shinobi World War, Ino dons the standard Konoha infantry flak jacket and assorted clothing. In the Blank Period, she wears a longer skirt that reaches her ankles, high-heeled sandals and pink lipstick.[21] As an adult, Ino wears her purple outfit again exposing her midriff and open-toed sandals. She also dons the standard Konoha uniform while on missions.