Ki Hui-hyeon
Ki Hui-hyeon, better known by the mononym Huihyun and former stage name Cathy, is a South Korean singer. She is best known as a member of the South Korean girl group DIA
- Title: Ki Hui-hyeon
- Popularity: 0.65
- Known For: Acting
- Birthday: 1995-06-16
- Place of Birth: Namwon, North Jeolla, South Korea
- Homepage:
- Also Known As: 기희현