| Kim Hyun-ki | |
| Nickname: | Zzan Ji |
| Birth Date: | February 9, 1983 |
| Birth Place: | Gangneung, South Korea |
| Club: | Mu-Ju Resort |
| Skis: | Fischer |
| Seasons: | 1999– |
| Wins: | 0 |
| Additionalpodiums: | 0 |
| Totalpodiums: | 0 |
| Updated: | 20 May 2008 |
| Hangul: | 김현기 |
| Hanja: | 金鉉起 |
| Rr: | Gim Hyeon-gi |
| Mr: | Kim Hyŏn-gi |
Kim Hyun-ki (; born February 9, 1983) is a South Korean ski jumper who has competed from 1998 to 2018.
Competing in four Winter Olympics, he earned his best finish of eighth in the team large hill event at Salt Lake City in 2002 while his best individual finish was 31st in the individual large hill event at those same games.
Kim's best finish at the FIS Nordic World Ski Championships was tenth in the team normal hill event at Oberstdorf in 2005 while his best individual finish was 38th in the individual normal hill at those same games. He finished 30th in the individual event of the FIS Ski-Flying World Championships 2006 in Kulm.
Kim's best individual World Cup finish was 21st in a large hill event in Japan in 2006. He has two individual victories in lesser events from 2009.
He holds a negative record for the highest number of fallouts in qualifications in World Cup with 118 fallouts.