Koo Ja-Ryong is a 34-year-old professional football player from KOR. He currently plays for Eastern Football Club, wearing the number 20 shirt. He plays primarily as a Defender. He stands at 182cm tall and weighs 75kg. His preferred foot is Right. His current market value is estimated at 125K €.

His most recent move was a from Bucheon FC 1995 to Eastern Football Club on 2025-08-18.

Throughout the Chinese Hong Kong Premier League 2025-2026, Koo Ja-Ryong featured in 7 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.