| idol_id | 789 |
| Selca owner | snsd_seohyun |
| Pop type | K-pop |
| Stage name (romanized) | Seohyun |
| Stage name (original) | 서현 |
| Real name (romanized) | Seo Joohyun |
| Real name (original) | 서주현 (徐朱玄) |
| Birth date | 1991-06-28 (age 34) ▲ ▼ |
| Chinese zodiac sign | 🐐 Goat |
| Western zodiac sign | ♋ Cancer |
| Hometown | Seoul |
| Height | 170.0cm (5'7") ▲ ▼ |
| Weight | |
| Blood type | A |
| MBTI | ENTJ |
| Debut date | 2007-08-05 (18 years and 2 months ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | Roles | |
|---|---|---|---|---|---|---|---|
|
Girls' Generation (소녀시대) | SM Entertainment | 2007-08-05 | Yes | Maknae |
| Name | Debut date | |
|---|---|---|
|
TaeTiSeo (태티서) | 2012-05-02 |