Um Won-Sang is a 27-year-old professional football player from KOR. He currently plays for Daejeon Citizen, wearing the number 11 shirt. At the international level, he represents South Korea U21. He plays primarily as a Forward. He stands at 171cm tall and weighs 63kg. His preferred foot is Both. His current market value is estimated at 700K €.

His most recent move was a from Ulsan HD FC to Daejeon Citizen on 2026-01-15.

In the Korean K League 1 2025 season, Um Won-Sang scored 1 goals and provided 5 assists across 30 appearances, averaging 0 goals per game with 33 shots attempted and 12 on target.