The women's 100 metres hurdles event at the 2009 European Athletics U23 Championships was held in Kaunas, Lithuania, at S. Dariaus ir S. Girėno stadionas (Darius and Girėnas Stadium) on 17 and 18 July.
| Gold | Christina Vukicevic | |
| Silver | Yekaterina Shtepa | |
| Bronze | Alina Talay |
18 July
Wind: -2.0 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| align=left | align=left | | 12.99 | ||||
| align=left | align=left | | 13.28 | ||||
| align=left | align=left | | 13.30 | ||||
| 4 | align=left | align=left | | 13.32 | |||
| 5 | align=left | align=left |  | 13.36 | |||
| 6 | align=left | align=left | 13.41 | ||||
| 7 | align=left | align=left | 13.45 | ||||
| 8 | align=left | align=left | | 13.48 |
17 July
Qualified: first 3 in each heat and 2 best to the Final
Wind: 0.1 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.05 | Q | ||
| 2 | align=left | align=left | | 13.07 | Q | ||
| 3 | align=left | align=left | | 13.10 | Q | ||
| 4 | align=left | align=left | 13.39 | ||||
| 5 | align=left | align=left |  | 13.43 | |||
| 6 | align=left | align=left | 13.50 | ||||
| 7 | align=left | align=left | 13.60 | ||||
| 8 | align=left | align=left | | 13.72 |
Wind: 0.3 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.15 | Q | ||
| 2 | align=left | align=left | | 13.26 | Q | ||
| 3 | align=left | align=left | | 13.31 | Q | ||
| 4 | align=left | align=left | 13.34 | q | |||
| 5 | align=left | align=left | 13.39 | q | |||
| 6 | align=left | align=left |  | 13.48 | |||
| 7 | align=left | align=left |  | 13.54 | |||
| 8 | align=left | align=left |  | 13.57 |
17 July
Qualified: first 3 in each heat and 4 best to the Semifinals
Wind: -0.9 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.45 | Q | ||
| 2 | align=left | align=left | | 13.46 | Q | ||
| 3 | align=left | align=left | | 13.68 | Q | ||
| 4 | align=left | align=left |  | 13.69 | |||
| 5 | align=left | align=left | | 13.70 | |||
| 6 | align=left | align=left | | 13.73 | |||
| 7 | align=left | align=left | | 13.85 | |||
| 8 | align=left | align=left | 14.27 |
Wind: -0.9 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.12 | Q | ||
| 2 | align=left | align=left | 13.33 | Q | |||
| 3 | align=left | align=left | | 13.48 | Q | ||
| 4 | align=left | align=left | 13.51 | q | |||
| 5 | align=left | align=left | | 13.64 | q | ||
| 6 | align=left | align=left | | 13.84 | |||
| 7 | align=left | align=left | 14.02 |
Wind: 0.0 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.37 | Q | ||
| 2 | align=left | align=left | | 13.38 | Q | ||
| 3 | align=left | align=left | 13.42 | Q | |||
| 4 | align=left | align=left | 13.46 | q | |||
| 5 | align=left | align=left | | 13.52 | q | ||
| 6 | align=left | align=left | | 13.84 | |||
| 7 | align=left | align=left | 14.16 | ||||
| 8 | align=left | align=left | | 14.45 |
Wind: -0.3 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 13.28 | Q | |||
| 2 | align=left | align=left | | 13.32 | Q | ||
| 3 | align=left | align=left | | 13.71 | Q | ||
| 4 | align=left | align=left |  | 13.72 | |||
| 5 | align=left | align=left |  | 13.89 | |||
| 6 | align=left | align=left | 13.90 | ||||
| 7 | align=left | align=left | | 13.97 | |||
| 8 | align=left | align=left | 14.07 |
According to an unofficial count, 31 athletes from 17 countries participated in the event.
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