| Full Name | Choi San |
| Stage Name | San |
| Native Name | 최산 |
| Birthday | July 10, 1999 |
| Age | 26 years old |
| Zodiac Sign | Cancer |
| Birthplace | Gyeongsan, South Korea |
| Height | 5’10” (177 cm) |
| Weight | 145.5 lbs (66 kg) |
| Blood Type | B |
| MBTI | INTJ |
| Education | Korean Arts High School |
| Languages | Korean, English, Japanese |
| Group | ATEEZ SPARKLING (2021) |
| Social Media | Instagram: [@choi3an] |