Koo Ja-cheol

* Club domestic league appearances and goals as of 24 November 2024 (UTC)

Koo Ja-cheol (Korean: 구자철; Korean pronunciation: [ku.dʑa.tɕʰʌl] or [ku] [tɕa.tɕʰʌl]; born 27 February 1989) is a South Korean former professional footballer who played as a midfielder. Koo is considered one of the most successful South Korean players at the Bundesliga. He made 211 Bundesliga appearances, while playing for VfL Wolfsburg, FC Augsburg and Mainz 05. On the international side, he won a bronze medal at the 2012 Summer Olympics, and captained the South Korea national team at the 2014 FIFA World Cup.