Kim Yong-hyun
Kim Yong-hyun is a badminton player from South Korea.
Kim competed for Korea in badminton at the 2004 Summer Olympics in men's doubles with partner Yim Bang-eun. They had a bye in the first round and defeated Lars Paaske and Jonas Rasmussen of Denmark in the second. In the quarterfinals, Kim and Yim lost to Eng Hian and Flandy Limpele of Indonesia 15-1, 15-10.
Kim also competed in mixed doubles with partner Lee Hyo-jung. They had a bye in the first run and were defeated by Jens Eriksen and Mette Schjoldager of Denmark in the round of 16.
Achievements
Asian Championships
Mixed doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2003 | Tennis Indoor Gelora Bung Karno, Jakarta, Indonesia |  Lee Hyo-jung |  Anggun Nugroho Eny Widiowati | 13–15, 8–15 | Bronze |
World Junior Championships
Boys' doubles| Year | Venue | Partner | Opponent | Score | Result |
| 1996 | Silkeborg Hallerne, Silkeborg, Denmark | Yim Bang-eun |  Huang Shih-chung Chien Yu-hsiu | 11–15, 7–15 | Bronze |
IBF Grand Prix
The World Badminton Grand Prix sanctioned by International Badminton Federation since 1983.Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2003 | Dutch Open | Yim Bang-eun | Ha Tae-kwon Kim Dong-moon | 2–15, 2–15 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2004 | Malaysia Open | Lee Hyo-jung |  Zhang Jun Gao Ling | 2–15, 11–15 | Runner-up |
| 2004 | Korea Open | Lee Hyo-jung | Kim Dong-moon Ra Kyung-min | 5–15, 11–15 | Runner-up |
| 2004 | All England Open | Lee Hyo-jung | Kim Dong-moon Ra Kyung-min | 8–15, 15–17 | Runner-up |
| 2003 | Denmark Open | Lee Hyo-jung | Kim Dong-moon Ra Kyung-min | 16–17, 10–15 | Runner-up |
| 2003 | Dutch Open | Lee Hyo-jung | Kim Dong-moon Ra Kyung-min | 4–15, 2–15 | Runner-up |
| 2003 | Korea Open | Lee Hyo-jung | Kim Dong-moon Ra Kyung-min | 5–11, 4–11 | Runner-up |
| 2003 | Swiss Open | Lee Hyo-jung |  Jens Eriksen Mette Schjoldager | 7–11, 11–9, 5–11 | Runner-up |
IBF International
Men's doubles| Year | Tournament | Partner | Opponent | Score | Result |
| 1999 | Norwegian International | Yim Bang-eun | Thomas Rojkjaer Jensen Tommy Sørensen | 15–4, 15–9 | Winner |
| 1999 | Hungarian International | Yim Bang-eun | Jung Sung-gyun Park Young-duk | 15–1, 15–4 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 1999 | Norwegian International | Yim Kyung-jin | Ove Svejstrup Britta Andersen | 9–15, 15–8, 15–9 | Winner |
| 1999 | Hungarian International | Yim Kyung-jin | Yim Bang-eun Lee Hyo-jung | 5–15, 15–9, 15–3 | Winner |