Sung Ji-hyun (Korean: 성지현; Hanja: 成池鉉; born 29 July 1991) is a South Korean badminton player from Seoul. She is an Asian Championship gold medalist, a two-time Summer Universiade gold medalist, and a World Championship bronze medalist. She was also part of South Korean teams that won the 2010 Uber Cup, 2017 Sudirman Cup, as well the team event at the 2013 and 2015 Summer Universiade. She competed at the 2010, 2014 and 2018 Asian Games, and at the 2012 and 2016 Summer Olympics. Sung is married to compatriot men's singles player, Son Wan-ho.