1991 World Championships in Athletics – Women's 100 metres hurdles
These are the official results of the Women's 100 metres Hurdles event at the 1991 IAAF World Championships in Tokyo, Japan. There were a total number of 33 participating athletes, with two semi-finals and five qualifying heats and the final held on Friday August 30, 1991.Medalists
Final
Semi-Finals
| RANK | HEAT 1 | TIME |
| 1. | | 12.66 |
| 2. | | 12.71 |
| 3. | | 12.88 |
| 4. | | 13.11 |
| 5. | | 13.17 |
| 6. | | 13.18 |
| 7. | | 13.24 |
| 8. | | 13.26 |
| RANK | HEAT 2 | TIME |
| 1. | | 12.52 |
| 2. | | 12.91 |
| 3. | | 12.94 |
| 4. | | 12.94 |
| 5. | | 13.02 |
| 6. | | 13.12 |
| 7. | | 13.19 |
| 8. | | 13.24 |
Qualifying heats
- Held on Thursday 1991-08-29
| RANK | HEAT 1 | TIME |
| 1. | | 13.12 |
| 2. | | 13.12 |
| 3. | | 13.20 |
| 4. | | 13.33 |
| 5. | | 13.38 |
| 6. | | 13.55 |
| RANK | HEAT 2 | TIME |
| 1. | | 13.02 |
| 2. | | 13.30 |
| 3. | | 13.41 |
| 4. | | 13.41 |
| 5. | | 13.75 |
| 6. | | 14.01 |
| – | | DNS |
| RANK | HEAT 3 | TIME |
| 1. | | 12.77 |
| 2. | | 13.10 |
| 3. | | 13.12 |
| 4. | | 13.22 |
| 5. | | 13.29 |
| 6. | | 13.53 |
| RANK | HEAT 4 | TIME |
| 1. | | 12.92 |
| 2. | | 13.10 |
| 3. | | 13.24 |
| 4. | | 13.34 |
| 5. | | 13.44 |
| 6. | | 13.49 |
| 7. | | 13.81 |
| RANK | HEAT 5 | TIME |
| 1. | | 12.66 |
| 2. | | 12.86 |
| 3. | | 13.07 |
| 4. | | 13.08 |
| 5. | | 13.41 |
| 6. | | 13.50 |
| 7. | | 13.85 |
