Sung-Hwan Byun is a former South Korean defender who played for Ulsan HD, Busan IPark and Jeju SK. He represented South Korea at youth level but was not capped at senior level.
| Surname | Byun |
| Name | Sung-Hwan |
| Native Name | 변성환 |
| Nationality | South Korea |
| Birthplace | Daegu, South Korea |
| Birth Date | 22 December 1979 |
| Age | 46 years old |
| Position | Defender |
| Height | 1.76 m |
| Weight | 71 kg |
| AKA | Byun Sung-Hwan |
FC Anyang
Seongnam FC
Newcastle Jets
Sydney FC
Jeju SK
Busan IPark
Ulsan HD
South Korea Olympic Team
South Korea Youth Teams