Yoo Han-joon (Korean: 유한준; Hanja: 柳漢俊; born July 1, 1981 in Gunpo, Gyeonggi Province) is a retired South Korean outfielder for the KT Wiz in the Korea Baseball Organization.

As a junior in 2002, Yoo was selected for the South Korean national team in the Intercontinental Cup held in Havana, Cuba, where he played mostly as a backup third baseman behind Hanwha Eagles star Lee Bum-Ho.

On May 19, Yoo gained notability with his performance against the SK Wyverns, tying the all-time single-game record for RBI.

As a consistent full-time outfielder, Yoo finished the season with career-bests in all offensive categories, ranked 4th in the KBO league in at-bats (481), 7th in hits (140), 8th in doubles (27), 12th in RBI (79) and 22nd in batting average (.291).

After the 2010 season, Yoo was selected for the South Korea national baseball team to compete in the Intercontinental Cup held in Taichung.