KOTO is a multiethnic pop/rock artist in Japan.
- Name: Koto Kate Hachiya
- Birthdate: 1987.01.14
- Birthplace: Tokyo, Japan
- Blood type: A
- Height: 154cm
- Hobbies: Classical ballet, snowboarding, skiing, drawing
- Favorite foods: Hot foods, Japanese
- Favorite artists: Avril Lavigne, Red Hot Chili Peppers, Incubus, Simple Plan, Gob, Gwen Stefani, Maroon 5, Black Eyed Peas, Ashanti
KOTO is a new alternative J-rocker who debuted summer 2005. She is fluent in both Japanese and English, and prefers expressing herself in both languages. When she was 10, she toured with Matsutoya Yumi as one of her back-up dancers in the Surf & Snow Tour and Legend of Zuvuya Tour.