| idol_id | 1544 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Dahyun |
| Stage name (original) | 서다현 |
| Real name (romanized) | Seo Dahyun |
| Real name (original) | 서다현 (徐多賢) |
| Birth date | 2003-01-08 (age 21) ▲ ▼ |
| Chinese zodiac sign | 🐎 Horse |
| Western zodiac sign | ♑ Capricorn |
| Hometown | Busan |
| Height | 159.8cm (5'3") ▲ ▼ |
| Weight | |
| Blood type | A |
| Debut date | 2023-02-13 (1 year and 2 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|
|
(트리플에스)
|
Modhaus | 2023-02-13 | Yes |
| Name | Debut date | |
|---|---|---|
|
(아리아)
|
2024-01-15 |
|
(러블루션)
|
2023-08-17 |