Sakata Naoko (坂田奈穂子) is a former member of the unit HAPPY! STYLE under UP-FRONT PROMOTION as a HAPPY! STYLE Rookie. She joined on July 6, 2008.
- Name: Sakata Naoko (坂田奈穂子)
- Birthdate: October 28, 1987
- Birthplace: Nagasaki, Japan
- Zodiac: Scorpio
- Height: 163cm
- Hobbies: Anime, Manga, Listening to music, walking her dog, watching baseball
- She loves anime and manga.
- Her favorite anime is Moyashimon.
- Her favorite sports are archery, soccer and baseball.
- She is a fan of the baseball team, Chunichi Dragons.