The Women's 100 metres hurdles event at the 2011 European Athletics U23 Championships was held in Ostrava, Czech Republic, at Městský stadion on 16 July.
| Gold | Alina Talay | |
| Silver | Lisa Urech | |
| Bronze | Cindy Roleder |
16 July 2011 / 18:35
Wind: -1.0 m/s
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| align=left | align=left | | 4 | 0.190 | 12.91 | SB | |||
| align=left | align=left | 5 | 0.154 | 13.00 | |||||
| align=left | align=left | 3 | 0.153 | 13.10 | |||||
| 4 | align=left | align=left |  | 7 | 0.149 | 13.26 | |||
| 5 | align=left | align=left |  | 6 | 0.170 | 13.26 | |||
| 6 | align=left | align=left |  | 1 | 0.177 | 13.49 | |||
| 7 | align=left | align=left | | 2 | 0.179 | 13.62 | |||
| align=left | align=left |  | 8 | 0.178 | DNF |
Qualified: First 2 in each heat (Q) and 2 best performers (q) advance to the Final
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 13.01 | Q | |||
| 2 | align=left | align=left | 13.05 | Q | |||
| 2 | align=left | align=left | | 13.05 | Q | ||
| 4 | align=left | align=left | | 13.16 | Q | ||
| 5 | align=left | align=left | | 13.22 | Q SB | ||
| 6 | align=left | align=left | | 13.26 | Q | ||
| 7 | align=left | align=left | | 13.38 | q | ||
| 8 | align=left | align=left | | 13.46 | q | ||
| 9 | align=left | align=left |  | 13.54 | |||
| 10 | align=left | align=left |  | 13.72 | PB | ||
| 11 | align=left | align=left |  | 13.79 | |||
| 12 | align=left | align=left |  | 13.81 | |||
| 13 | align=left | align=left | 13.81 | ||||
| 14 | align=left | align=left | 13.88 | ||||
| 15 | align=left | align=left |  | 13.89 | |||
| 16 | align=left | align=left |  | 13.90 | |||
| 17 | align=left | align=left |  | 14.55 |
16 July 2011 / 17:05Wind: -0.8 m/s
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 3 | 0.160 | 13.05 | Q | |||
| 2 | align=left | align=left | | 4 | 0.177 | 13.16 | Q | ||
| 3 | align=left | align=left | | 5 | 0.199 | 13.46 | q | ||
| 4 | align=left | align=left | | 2 | 0.177 | 13.72 | PB | ||
| 5 | align=left | align=left | 6 | 0.158 | 13.88 | ||||
| 6 | align=left | align=left | | 7 | 0.197 | 13.89 |
16 July 2011 / 17:11Wind: -0.2 m/s
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 3 | 0.168 | 13.01 | Q | |||
| 2 | align=left | align=left | | 4 | 0.173 | 13.22 | Q SB | ||
| 3 | align=left | align=left | | 5 | 0.177 | 13.54 | |||
| 4 | align=left | align=left | | 2 | 0.166 | 13.81 | |||
| 5 | align=left | align=left | 6 | 0.132 | 13.81 |
16 July 2011 / 17:17Wind: -0.6 m/s
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 3 | 0.214 | 13.05 | Q | ||
| 2 | align=left | align=left | | 4 | 0.176 | 13.26 | Q | ||
| 3 | align=left | align=left | | 5 | 0.164 | 13.38 | q | ||
| 4 | align=left | align=left | | 2 | 0.210 | 13.79 | |||
| 5 | align=left | align=left | | 6 | 0.188 | 13.90 | |||
| 6 | align=left | align=left | | 7 | 0.201 | 14.55 |
According to an unofficial count, 17 athletes from 16 countries participated in the event.