| Iaaf: | KOR |
| Fedname: | Korea Association of Athletics Federations |
| Year: | 2001 |
| Games: | World Championships in Athletics |
| Location: | Edmonton |
| Competitors: | 7 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Previous: | 1999 |
| Next: | 2003 |
South Korea competed at the 2001 World Championships in Athletics from August 3 to 12. A team of 7 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 | ||
| Lim Jin-Soo | Marathon | 2:23:16 | 22 | ||||||
| Kim Yi-Yong | Marathon | 2:33:28 | 54 | ||||||
| Lee Bong-Ju | Marathon | Din not finish | |||||||
| Shin Il-Yong | 20 kilometres walk | 1:27:47 | 19 | ||||||
| Athlete | Event | Heats Qualification | Quarterfinals | Semifinals | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | ||
| Yun Sun-Sook | Marathon | 2:33:09 | 16 | ||||||
| Kim Mi-Jung | 20 kilometres walk | 1:35:30 | 14 | ||||||
| Lee Myung-Sun | Shot put | 17.66 | 14 | Did not advance | |||||