| Personal information | |||
|---|---|---|---|
| Full name | Lee Sung-yoon | ||
| Date of birth | 31 October 2000 | ||
| Place of birth | South Korea | ||
| Height | 1.85 m (6 ft 1 in) | ||
| Position(s) | Midfielder | ||
| Youth career | |||
| –2020 | Jeonbuk Hyundai Motors | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2020–2023 | Jeonbuk Hyundai Motors | 15 | (2) |
| 2022 | → Seoul E-Land FC (loan) | 8 | (1) |
| *Club domestic league appearances and goals, correct as of 2:59, 20 October 2023 | |||
| Lee Sung-yoon | |
| Hangul | 이성윤 |
|---|---|
| Revised Romanization | Lee Seongyun |
| McCune–Reischauer | Lee Sŏngyun |
Lee Sung-yoon (Korean: 이성윤; born 31 October 2000) is a South Korean footballer currently playing as a midfielder.