# Swimming at the 2011 World Aquatics Championships – Women's 4 × 100 metre medley relay

The women's 4 x 100 metre medley competition of the swimming events at the 2011 World Aquatics Championships was held on July 30 with the heats and the final.
The American team consisting of Natalie Coughlin, Rebecca Soni, Dana Vollmer, and Missy Franklin won the gold in an Americas record time of 3:52.36.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record Championship record | Zhao Jing (58.98) Chen Huijia (1:04.12) Jiao Liuyang (56.28) Li Zhesi (52.81) | China | 3:52.19 | Rome | August 1, 2009 |

## Results
### Heats

17 teams participated in 3 heats.
| Rank | Heat | Lane | Nation | Athletes | Time | Notes |
| 1 | 3 | 4 | United States | Elizabeth Pelton (1:00.19) Rebecca Soni (1:04.97) Christine Magnuson (57.54) Amanda Weir (54.25) | 3:56.95 | Q |
| 2 | 3 | 6 | Russia | Anastasia Zuyeva (59.53) Yuliya Yefimova (1:06.31) Irina Bespalova (58.77) Veronika Popova (54.47) | 3:59.08 | Q |
| 3 | 3 | 5 | China | Gao Chang (1:01.07) Sun Ye (1:07.12) Jiao Liuyang (57.82) Li Zhesi (53.43) | 3:59.44 | Q |
| 4 | 2 | 4 | Australia | Stephanie Rice (1:01.47) Leisel Jones (1:06.71) Alicia Coutts (57.21) Merindah Dingjan (54.23) | 3:59.62 | Q |
| 5 | 2 | 5 | Great Britain | Georgia Davies (1:00.15) Kate Haywood (1:08.19) Jemma Lowe (57.28) Amy Smith (54.03) | 3:59.65 | Q |
| 6 | 1 | 4 | Japan | Aya Terakawa (1:00.40) Satomi Suzuki (1:07.15) Yuka Kato (58.40) Haruka Ueda (54.13) | 4:00.08 | Q |
| 7 | 3 | 3 | Canada | Sinead Russell (1:00.16) Jillian Tyler (1:07.70) Katerine Savard (57.91) Chantal van Landeghem (54.95) | 4:00.72 | Q |
| 8 | 2 | 3 | Germany | Jenny Mensing (1:01.30) Sarah Poewe (1:07.24) Sina Sutter (58.65) Daniela Schreiber (53.71) | 4:00.90 | Q |
| 9 | 1 | 3 | Denmark | Mie Nielsen (1:01.73) Rikke Pedersen (1:07.49) Jeanette Ottesen (58.07) Pernille Blume (54.31) | 4:01.60 | |
| 10 | 1 | 5 | Sweden | Sarah Sjöström (1:01.24) Joline Höstman (1:08.71) Martina Granström (58.27) Ida Marko-Varga (54.49) | 4:02.71 | |
| 11 | 2 | 7 | Netherlands | Femke Heemskerk (1:01.30) Moniek Nijhuis (1:08.64) Inge Dekker (58.27) Maud van der Meer (54.99) | 4:03.20 | |
| 12 | 2 | 6 | Spain | Duane da Rocha (1:01.27) Marina Garcia Urzainque (1:08.65) Judit Ignacio Sorribes (59.03) Maria Fuster (55.03) | 4:03.98 | NR |
| 13 | 3 | 2 | France | Alexianne Castel (1:01.30) Sophie de Ronchi (1:08.57) Aurore Mongel (59.65) Camille Muffat (54.53) | 4:04.05 | |
| 14 | 1 | 6 | Italy | Elena Gemo (1:02.65) Chiara Boggiatto (1:08.21) Ilaria Bianchi (59.05) Federica Pellegrini (54.83) | 4:04.74 | NR |
| 15 | 1 | 2 | South Africa | Karin Prinsloo (1:01.30) Suzaan van Biljon (1:09.10) Vanessa Mohr (58.43) Leone Vorster (56.14) | 4:04.97 | |
| 16 | 1 | 7 | Finland | Anni Alitalo (1:04.37) Jenna Laukkanen (1:08.93) Emilia Pikkarainen (1:00.90) Hanna-Maria Seppala (54.27) | 4:08.47 | NR |
| 17 | 3 | 7 | Brazil | Etiene Medeiros (1:04.27) Carolina Mussi (1:14.32) Daynara de Paula (1:00.12) Tatiana Lemos (55.81) | 4:14.52 | |
| – | 2 | 2 | South Korea | | | DNS |

### Final

The final was held at 19:45.
| Rank | Lane | Nation | Athletes | Time | Notes |
| | 4 | United States | Natalie Coughlin (59.12) Rebecca Soni (1:04.71) Dana Vollmer (55.74) Missy Franklin (52.79) | 3:52.36 | AM |
| | 3 | China | Zhao Jing (59.24) Ji Liping (1:06.27) Lu Ying (56.77) Tang Yi (53.33) | 3:55.61 | |
| | 6 | Australia | Belinda Hocking (59.91) Leisel Jones (1:06.18) Alicia Coutts (56.69) Merindah Dingjan (54.35) | 3:57.13 | |
| 4 | 5 | Russia | Anastasia Zuyeva (59.13) Yuliya Yefimova (1:05.91) Irina Bespalova (58.61) Veronika Popova (53.73) | 3:57.38 | NR |
| 5 | 7 | Japan | Aya Terakawa (1:00.02) Satomi Suzuki (1:06.30) Yuka Kato (57.55) Yayoi Matsumoto (53.97) | 3:57.84 | |
| 6 | 2 | Great Britain | Georgia Davies (59.95) Stacey Tadd (1:09.14) Ellen Gandy (57.97) Francesca Halsall (54.03) | 4:01.09 | |
| – | 1 | Canada | Sinead Russell (59.69) Jillian Tyler (–) Katerine Savard (–) Julia Wilkinson (–) | | DSQ |
| – | 8 | Germany | Jenny Mensing (1:01.21) Sarah Poewe (–) Sina Sutter (–) Daniela Schreiber (–) | | DSQ |