| Full Name | Kim Da-hyun |
| Stage Name | Dahyun |
| Native Name | 김다현 |
| Birthday | May 28, 1998 |
| Age | 27 years old |
| Zodiac Sign | Gemini |
| Birthplace | Gyeonggi-do, South Korea |
| Height | 5’4″ (161 cm) |
| Weight | 97 lbs (44 kg) |
| Blood Type | O |
| MBTI | ISFJ-T |
| Education | Hanlim MultiArt School |
| Languages | Korean, Japanese, English |
| Group | TWICE |
| Social Media | Instagram: [@dahhyunnee] |