| Event: | Women's 4 × 400 metres relay |
| Games: | 2011 |
| Venue: | Telmex Athletics Stadium |
| Dates: | October 28 |
| Competitors: | 24 |
| Nations: | 8 |
| Win Label: | Winning time |
| Gold: | Aymée Martínez, Diosmely Peña, Susana Clement, Daisurami Bonne |
| Goldnoc: | CUB |
| Silver: | Joelma Sousa, Geisa Coutinho, Bárbara de Oliveira, Jailma de Lima |
| Silvernoc: | BRA |
| Bronze: | Princesa Oliveros, Norma González, Evelis Aguilar, Jennifer Padilla |
| Bronzenoc: | COL |
| Prev: | 2007 |
| Next: | 2015 |
The women's 4 × 400 metres relay competition of the athletics events at the 2011 Pan American Games took place on the 28th October at the Telmex Athletics Stadium.[1] The defending Pan American Games champion were Aymée Martínez, Daimy Pernia, Zulia Calatayud and Indira Terrero of Cuba.
Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | 3:15.17 | Seoul, South Korea | October 1, 1988 | ||
| Pan American Games record | 3:23.35 | Indianapolis, United States | August 16, 1987 |
Each National Olympic Committee (NOC) was able to enter one team.[2]
All times shown are in seconds.
| KEY: | bgcolor=ccffcc align=center | q | Fastest non-qualifiers | bgcolor=ccffcc align=center | Q | Qualified | NR | National record | PB | Personal best | SB | Seasonal best | DQ | Disqualified |
Held on October 28.
| Rank | Nation | Athletes | Time[3] | Notes | |
|---|---|---|---|---|---|
| 3:28.09 | |||||
| 3:29.59 | |||||
| 3:29.94 | |||||
| 4 | 3:33.42 | ||||
| 5 | 3:40.07 | ||||
| 6 | 3:45.59 | ||||
| DNS | |||||
| DNS |