Chisato Okai
- Born
- 21 June 1994 (32 years)
- Place of birth
- Tokorozawa, Saitama Prefecture, Japan
- Gender
- Female
岡井千聖 (Okai Chisato) is a former Japanese pop singer. She is a former member of the group ℃-ute under Hello! Project. She is also a former member of Mellowquad and Triplet and leader of Team Okai. On May 1, 2020, she announced she had retired from the entertainment industry.
