Lee Ji-hun (born 14 November 1995) is a South Korean modern pentathlete. He won the silver medal in the men's event at the 2018 Asian Games held in Jakarta, Indonesia.
He earned a spot for a competitor to represent South Korea at the 2020 Summer Olympics in Tokyo, Japan after winning the gold medal in the men's individual event at the 2019 Asia/Oceania Championships & Olympic Qualifier. Jung Jin-hwa competed at the 2020 Summer Olympics in the men's modern penthathlon.