Park Hyung-Joo (also "Park Hyeong-Ju", ; born July 16, 1995 in Seoul) is a South Korean swimmer, who specialized in backstroke events. Park qualified for the men's 200 m backstroke, as South Korea's youngest male swimmer (aged 17), at the 2012 Summer Olympics in London, by clearing a FINA B-standard entry time of 2:00.53 from the Dong-A Swimming Tournament in Ulsan. He challenged seven other swimmers on the second heat, including three-time Olympian and European short course champion Aschwin Wildeboer Faber of Spain. Park edged out Ukraine's Oleksandr Isakov to take the seventh spot by 0.28 of a second in 2:01.50. Park failed to advance into the semifinals, as he placed thirty-first overall in the preliminary heats.