Lee Sung-Yoon is a professional footballer from KOR and is currently 26 years old. His main role on the pitch is Forward. He measures 184cm in height and weighs 78kg. His stronger foot is Right.

During the Korean K League 3 2025 campaign, Lee Sung-Yoon made 1 appearances, scoring 1 goals and adding 0 assists. He averaged 1 goals per match from 0 shots, with 0 on target.