The Women's 4x100 metres relay event at the 2011 European Athletics U23 Championships was held in Ostrava, Czech Republic, at Městský stadion on 17 July.
| Gold | Yekaterina Filatova Alena Tamkova Yekaterina Kuzina Nina Argunova  | |
| Silver | Yariatou Touré Sarah Goujon Orlann Ombissa Cornnelly Calydon Émilie Gaydu†  | |
| Bronze | Annabelle Lewis Emily Diamond Torema Thompson Asha Philip |
17 July 2011 / 17:10
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|---|
| align=left | | 7 | 0.224 | 44.14 | ||||
| align=left | | 6 | 0.181 | 44.26 | ||||
| align=left | 5 | 0.192 | 44.34 | |||||
| 4 | align=left |  | 8 | 0.195 | 44.41 | |||
| 5 | align=left | 1 | 0.132 | 44.61 | ||||
| 6 | align=left |  | 3 | 0.177 | 44.67 | |||
| 7 | align=left |  | 2 | 0.201 | 45.31 | |||
| align=left |  | 4 | 0.214 | DQ | R 32.2.a Doping† |
ranked initially 1st (44.00), but was disqualified later for infringement of IAAF doping rules by team members Darya Pizhankova and Ulyana Lepska.Qualified: First 3 in each heat (Q) and 2 best performers (q) advance to the Final
| Rank | Nation | Time | Notes | |||
|---|---|---|---|---|---|---|
| 1 | align=left | | 44.14 | Q | ||
| 2 | align=left | 44.42 | Q | |||
| align=left | | bgcolor=pink | DQ | bgcolor=pink | R 32.2.a Doping† | |
| 3 | align=left | | 44.61 | Q | ||
| 4 | align=left | | 44.68 | Q | ||
| 5 | align=left | | 44.73 | Q | ||
| 6 | align=left | 44.94 | q | |||
| 7 | align=left | | 45.28 | q | ||
| align=left | DNF |
initially reached the final (44.56), but was disqualified later for infringement of IAAF doping rules by team members Darya Pizhankova and Ulyana Lepska.17 July 2011 / 15:20
| Rank | Nation | Competitors | Lane | Reaction Time | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | align=left | 3 | 0.150 | 44.42 | Q | ||||
| align=left | | 2 | 0.208 | bgcolor=pink | DQ | bgcolor=pink | R 32.2.a Doping† | ||
| 2 | align=left | | 4 | 0.220 | 44.61 | Q | |||
| 3 | align=left | 5 | 0.163 | 44.94 | q |
initially reached the final (44.56), but was disqualified later for infringement of IAAF doping rules by team members Darya Pizhankova and Ulyana Lepska.17 July 2011 / 15:27
| Rank | Nation | Competitors | Lane | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|---|
| 1 | align=left | | 5 | 0.178 | 44.14 | Q | ||
| 2 | align=left | | 6 | 0.167 | 44.68 | Q | ||
| 3 | align=left | | 2 | 0.163 | 44.73 | Q | ||
| 4 | align=left | | 4 | 0.172 | 45.28 | q | ||
| align=left | 3 | 0.163 | DNF |
According to an unofficial count, 37 athletes from 9 countries participated in the event.