| Iaaf: | KOR |
| Fedname: | Korea Association of Athletics Federations |
| Year: | 1999 |
| Games: | World Championships in Athletics |
| Location: | Seville |
| Competitors: | 8 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Previous: | 1997 |
| Next: | 2001 |
South Korea competed at the 1999 World Championships in Athletics from August 21 to 29. A team of 8 athletes was announced in preparation for the competition.
| Athlete | Event | Heats Qualification | Quarterfinals | Semifinals | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | ||
| Kim Soon-Hyung | 800 metres | 1:46.78 | 17 Q | 1:47.15 | 15 | Did not advance | |||
| Hyung Jae-Young | Marathon | 2:18:19 | 21 | ||||||
| Lee Jin-Taek | High jump | 2.29 (SB) | 8 Q | 2.29 (SB) | 6 | ||||
| Sung Hee-Jun | Long jump | 7.62 | 33 | Did not advance | |||||
| Yu Nam-Sung | Javelin throw | 72.87 | 26 | Did not advance | |||||
| Athlete | Event | Heats Qualification | Quarterfinals | Semifinals | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | ||
| Kim Mi-Jung | 20 kilometres walk | 1:46:36 | 39 | ||||||
| Lee Myung-Sun | Shot put | 18.37 | 8 Q | 17.92 | 10 | ||||
| Lee Young-Sun | Javelin throw | 51.36 | 27 | Did not advance | |||||