Kim Joo-hyung (born 21 June 2002) is a South Korean professional golfer. He has won twice on the Asian Tour, as well as having two victories on the Korean Tour.
Kim turned professional in May 2018, playing on the Philippine Golf Tour. In 2019 he initially played mostly on the Asian Development Tour. In March he had two fourth-place finishes in Malaysia and then two runner-up finishes in Thailand before winning his first event, the PGM ADT Championship, in Malaysia in late June, six strokes ahead of the field. He won the Ciputra Golfpreneur Tournament in Indonesia in August, after a playoff, and the Raya Pakistan Open by nine shots in October. His third win gave him automatic promotion to the Asian Tour for the rest of 2019. In November, he won the Panasonic Open India, becoming, at 17 years and 149 days, the second youngest professional to win on the Asian Tour.