The Women's 4x400 metres relay event at the 2013 European Athletics U23 Championships was held in Tampere, Finland, at Ratina Stadium on 14 July.
| Gold | Magdalena Gorzkowska Małgorzata Hołub Agnieszka Karczmarczyk Justyna Święty  | |
| Silver | Camelia Florina Gal Mirela Lavric Sanda Belgyan Adelina Pastor  | |
| Bronze | Lénora Guion-Firmin Justine Fedronic Louise-Anne Bertheau Agnès Raharolahy  |
14 July 2013 / 18:40
| Rank | Name | Nationality | Lane | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|---|
| align=left | | 7 | 0.218 | 3:29.74 | NUR | |||
| align=left | | 6 | 0.164 | 3:30.28 | NUR | |||
| align=left | | 2 | 0.206 | 3:30.64 | ||||
| 4 | align=left |  | 3 | 0.213 | 3:31.14 | |||
| 5 | align=left |  | 4 | 0.202 | 3:32.32 | |||
| align=left |  | 5 | 0.250 | DQ | R 163.3a |
According to an unofficial count, 24 athletes from 6 countries participated in the event.