Athletics at the 2008 Summer Olympics – Women's 100 metres Semifinals Semifinals

| Rank_ | Heat | Athlete | Country | Time_ |
|---|---|---|---|---|
| 1 | 1 | Shelly-Ann Fraser | Jamaica | 11.00 |
| 2 | 2 | Kerron Stewart | Jamaica | 11.05 |
| 3 | 1 | Muna Lee | United States | 11.06 |
| 4 | 1 | Lauryn Williams | United States | 11.10 |
| 5 | 1 | Sherone Simpson | Jamaica | 11.11 |
| 6 | 2 | Torri Edwards | United States | 11.18 |
| 7 | 2 | Jeanette Kwakye | Great Britain | 11.19 |
| 8 | 2 | Debbie Ferguson | Bahamas | 11.22 |
| 8 | 1 | Chandra Sturrup | Bahamas | 11.22 |
| 10 | 2 | Yulia Nestsiarenka | Belarus | 11.26 |
| 11 | 2 | Kim Gevaert | Belgium | 11.30 |
| 12 | 2 | Yevgeniya Polyakova | Russia | 11.38 |
| 13 | 2 | Oludamola Osayomi | Nigeria | 11.44 |
| 14 | 1 | Lina Grincikaite | Lithuania | 11.50 |
| 15 | 1 | Ivet Lalova | Bulgaria | 11.51 |
| 15 | 1 | Vida Anim | Ghana | 11.51 |