Track and field at the 2011 Military World Games – Women's 400 metres
# Track and field at the 2011 Military World Games – Women's 400 metres

The women's 400 metres event at the 2011 Military World Games was held on 21 and 22 July at the Estádio Olímpico João Havelange.

## Records

Prior to this competition, the existing world and CISM record were as follows:

| World Record | Marita Koch (GDR) | 47.60 | Canberra, Australia | 6 October 1985 |
| - | - | - | - | - |
| CISM World Record | | | | |

## Schedule

| Date | Time | Round |
| - | - | - |
| 21 July 2011 | | Semifinals |
| 22 July 2011 | 11:30 | Final |

## Medalists

| Gold | Silver | Bronze |
| - | - | - |
| Geisa Coutinho Brazil | Olga Tereshkova Kazakhstan | Jailma de Lima Brazil |

## Results

### Final

| Rank | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| | 3 | Geisa Coutinho | Brazil | 51.08 | CR |
| | 7 | Olga Tereshkova | Kazakhstan | 51.27 | |
| | 5 | Jailma de Lima | Brazil | 51.77 | |
| 4 | 1 | Libania Grenot | Italy | 52.43 | |
| 5 | 4 | Rmcs Rasnayake | Sri Lanka | 52.52 | |
| 6 | 2 | Sylvie Zimbere | Cameroon | 54.26 | |
| 7 | 6 | Yolanda Osana | Dominican Republic | 54.86 | |
| | 8 | Hayat Lambarki | Morocco | DNF | |
