Swimming at the 2013 World Aquatics Championships – Women's 4 × 100 metre medley relay
The women's 4 × 100 metre medley relay event in swimming at the 2013 World Aquatics Championships took place on 4 August at the Palau Sant Jordi in Barcelona, Spain.
Records
Prior to this competition, the existing world and championship records were:Results
Heats
The heats were held at 11:08.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Elizabeth Pelton Breeja Larson Claire Donahue Shannon Vreeland | 3:58.66 | Q | |
| 2 | 1 | 4 | Emily Seebohm Samantha Marshall Alicia Coutts Emma McKeon | 3:58.73 | Q | |
| 3 | 2 | 3 | Fu Yuanhui Sun Ye Lu Ying Tang Yi | 3:59.39 | Q | |
| 4 | 1 | 3 | Lauren Quigley Sophie Allen Jemma Lowe Amy Smith | 4:00.04 | Q | |
| 5 | 2 | 5 | Aya Terakawa Satomi Suzuki Natsumi Hoshi Haruka Ueda | 4:00.18 | Q | |
| 6 | 2 | 2 | Hilary Caldwell Martha McCabe Katerine Savard Chantal van Landeghem | 4:00.34 | Q | |
| 7 | 1 | 5 | Daria Ustinova Anna Belousova Svetlana Chimrova Veronika Popova | 4:00.69 | Q | |
| 8 | 2 | 1 | Lisa Graf Caroline Ruhnau Alexandra Wenk Britta Steffen | 4:01.30 | Q | |
| 9 | 2 | 6 | Michelle Coleman Joline Höstman Sarah Sjöström Louise Hansson | 4:02.83 | ||
| 10 | 1 | 2 | Duane da Rocha Marina García Judit Ignacio Sorribes Melanie Costa | 4:03.79 | ||
| 11 | 1 | 1 | Jessica Ashley-Cooper Tara-Lynn Nicholas Marne Erasmus Karin Prinsloo | 4:06.46 | ||
| 12 | 1 | 8 | Etiene Medeiros Beatriz Travalon Daynara de Paula Larissa Oliveira | 4:06.91 | ||
| 13 | 2 | 9 | Fernanda González Erica Dittmer Rita Medrano Liliana Ibañez | 4:08.82 | NR | |
| 14 | 1 | 0 | Anni Alitalo Jenna Laukkanen Tanja Kylliäinen Hanna-Maria Seppälä | 4:09.10 | ||
| 15 | 1 | 7 | Tao Li Samantha Yeo Quah Ting Wen Amanda Lim | 4:10.69 | ||
| 16 | 1 | 9 | Kim Ji-Hyun Back Su-Yeon Park Jin-Young Hwang Seo-Jin | 4:10.75 | ||
| 17 | 2 | 8 | Hoi Shun Stephanie Au Man Yi Yvette Kong Chan Kin Lok Sze Hang Yu | 4:11.76 | ||
| 1 | 6 | Federica Pellegrini Lisa Fissneider Ilaria Bianchi Erika Ferraioli | ||||
| 2 | 7 | Cloé Credeville Sophie de Ronchi Mélanie Henique Coralie Balmy | ||||
| 2 | 0 |
Final
The final was held at 19:48.| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Missy Franklin Jessica Hardy Dana Vollmer Megan Romano | 3:53.23 | |||
| 5 | Emily Seebohm Sally Foster Alicia Coutts Cate Campbell | 3:55.22 | |||
| 1 | Daria Ustinova Yuliya Yefimova Svetlana Chimrova Veronika Popova | 3:56.47 | |||
| 4 | 3 | Fu Yuanhui Sun Ye Lu Ying Tang Yi | 3:57.30 | ||
| 5 | 2 | Aya Terakawa =AS Satomi Suzuki Natsumi Hoshi Haruka Ueda | 3:58.06 | ||
| 6 | 6 | Lauren Quigley Sophie Allen Jemma Lowe Francesca Halsall | 3:58.67 | ||
| 7 | 7 | Hilary Caldwell Martha McCabe Katerine Savard Chantal van Landeghem | 4:00.19 | ||
| 8 | 8 | Lisa Graf Caroline Ruhnau Alexandra Wenk Britta Steffen | 4:01.81 |