Kim Gi-jung or Kim Ki-jung (Hangul: 김기정; Korean pronunciation: [kim.ɡi.dʑʌŋ] or [kim] [ki.dʑʌŋ]; born 14 August 1990 in Dangjin) is a male South Korean badminton player. He competed at the Rio 2016 Summer Olympics.
In 2008, he won a bronze medal at the World Junior Championships in the mixed doubles event partnered with Eom Hye-Won. In 2009, he competed at the Hong Kong East Asian Games and won a silver medal in the men's team event and a bronze medal in the men's doubles event partnered with Kwon Yi-goo. In 2011, he won the Turkey International tournament in the men's doubles event with Kim Sa-rang.
In 2012, he and Kim Sa-rang won their first Superseries title at the Japan Open tournament. In the final round they beat the Malaysian pair Koo Kien Keat and Tan Boon Heong. At the 2012 Badminton Asia Championships in Qingdao, China, they won a gold medal after defeat Hiroyuki Endo and Kenichi Hayakawa of Japan in the final round. In September 2012, they also won men's doubles title at the Indonesian Masters tournament.