Lee Young-Sun (born 21 February 1974) is a retired female javelin thrower from South Korea. Her personal best throw is 58.87 metres, achieved at the 2002 Asian Games in Busan.
| Representing | |||||
|---|---|---|---|---|---|
| 1991 | Kuala Lumpur, Malaysia | 2nd | 55.06 m | ||
| 1992 | Olympic Games | Barcelona, Spain | 22nd (q) | 55.10 m | |
| 1993 | East Asian Games | Shanghai, China | bgcolor=silver | 2nd | 61.44 m |
| Buffalo, United States | 1st | 58.62 m | |||
| Stuttgart, Germany | 20th (q) | 54.78 m | |||
| 1994 | Hiroshima, Japan | 2nd | 62.30 m | ||
| 1995 | Jakarta, Indonesia | 2nd | 58.68 m | ||
| Fukuoka, Japan | 3rd | 61.62 m | |||
| 1996 | Olympic Games | Atlanta, United States | 15th (q) | 58.66 m | |
| 1997 | East Asian Games | Busan, South Korea | 2nd | 56.10 m | |
| World Championships | Athens, Greece | 22nd (q) | 55.98 m | ||
| Universiade | Catania, Italy | 7th | 57.22 m | ||
| 1998 | Bangkok, Thailand | 1st | 62.09 m | ||
| 1999 | World Championships | Seville, Spain | 27th (q) | 51.36 m | |
| 2000 | Jakarta, Indonesia | 1st | 55.78 m | ||
| Olympic Games | Sydney, Australia | 33rd (q) | 49.84 m | ||
| 2002 | Colombo, Sri Lanka | 3rd | 53.72 m | ||
| Busan, South Korea | 1st | 58.87 m | |||
| 2005 | Incheon, South Korea | 2nd | 55.29 m | ||