Nanase Ohkawa (大川七瀬) is a Japanese manga artist and author. She is the leader of the team CLAMP, and has also used the name Ageha Ohkawa (大川 緋芭).
- Known For: Writing
- Birthday: 1967-05-02
- Place of Birth: Osaka, Japan
- Also Known As: 大川七瀬, Nanase Okawa, Nanase Ookawa, Nanase Ōkawa, 大川 緋芭, Ageha Okawa, Ageha Ōkawa, Ageha Ohkawa, Ageha Ookawa, Nanase Ôkawa, CLAMP