# Swimming at the 2015 World Aquatics Championships – Women's 4 × 100 metre freestyle relay

The women's 4 × 100 metre freestyle relay competition of the swimming events at the 2015 World Aquatics Championships was held on 2 August with the heats and the final.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Australia | 3:30.98 | Glasgow, Scotland | 24 July 2014 |
| Competition record | Netherlands | 3:31.72 | Rome, Italy | 26 July 2009 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 2 August | Final | Australia | 3:31.48 | CR |

## Results
### Heats

The heats were held at 11:58.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 9 | United States | Shannon Vreeland (54.37) Abbey Weitzeil (53.85) Margo Geer (53.37) Lia Neal (53.93) | 3:35.52 | Q |
| 2 | 2 | 8 | Australia | Emily Seebohm (53.93) Madison Wilson (53.82) Melanie Wright (53.51) Bronte Barratt (54.60) | 3:35.86 | Q |
| 3 | 1 | 7 | Netherlands | Maud van der Meer (54.69) Marrit Steenbergen (54.72) Femke Heemskerk (53.00) Ranomi Kromowidjojo (53.50) | 3:35.91 | Q |
| 4 | 1 | 3 | Sweden | Michelle Coleman (54.00) Louise Hansson (54.30) Magdalena Kuras (55.19) Sarah Sjöström (52.75) | 3:36.24 | Q |
| 5 | 1 | 9 | Canada | Sandrine Mainville (54.57) Michelle Williams (54.06) Victoria Poon (54.91) Chantal van Landeghem (54.10) | 3:37.64 | Q |
| 5 | 2 | 1 | China | Zhu Menghui (54.14) Tang Yuting (54.55) Fang Yi (54.96) Shen Duo (53.99) | 3:37.64 | Q |
| 7 | 1 | 6 | Italy | Erika Ferraioli (54.77) Silvia Di Pietro (54.13) Federica Pellegrini (53.92) Laura Letrari (55.06) | 3:37.88 | Q |
| 8 | 2 | 5 | France | Charlotte Bonnet (53.95) Béryl Gastaldello (54.76) Cloé Hache (54.89) Anna Santamans (54.75) | 3:38.35 | Q |
| 9 | 2 | 3 | Japan | Miki Uchida (54.25) Rikako Ikee (54.63) Misaki Yamaguchi (54.58) Yayoi Matsumoto (55.01) | 3:38.47 | |
| 10 | 2 | 2 | Russia | Veronika Popova (54.51) Nataliya Lovtsova (54.66) Viktoriya Andreyeva (54.49) Mariia Kameneva (54.97) | 3:38.63 | |
| 11 | 1 | 4 | Brazil | Larissa Oliveira (55.08) Graciele Herrmann (55.96) Etiene Medeiros (54.49) Daynara de Paula (54.71) | 3:40.24 | |
| 12 | 2 | 4 | Poland | Katarzyna Wilk (54.86) Alicja Tchórz (55.11) Aleksandra Urbańczyk (56.16) Anna Dowgiert (54.76) | 3:40.89 | |
| 13 | 1 | 1 | Germany | Annika Bruhn (55.34) Dorothea Brandt (54.99) Alexandra Wenk (55.02) Marlene Huther (56.21) | 3:41.56 | |
| 14 | 1 | 5 | Hong Kong | Camille Cheng (55.58) Stephanie Au (56.30) Sze Hang Yu (55.40) Siobhán Haughey (54.83) | 3:42.11 | |
| 15 | 1 | 0 | Switzerland | Maria Ugolkova (56.42) Sasha Touretski (55.49) Danielle Villars (55.42) Noemi Girardet (56.37) | 3:43.70 | NR |
| 16 | 2 | 6 | Austria | Birgit Koschischek (55.70) Lisa Zaiser (54.95) Lena Kreundl (56.88) Jördis Steinegger (56.53) | 3:44.06 | |
| 17 | 1 | 2 | Colombia | Isabella Arcila (56.19) Carolina Colorado Henao (56.18) María Álvarez (57.68) Jessica Camposano (56.10) | 3:46.15 | NR |
| 18 | 1 | 8 | Singapore | Amanda Lim (57.44) Quah Ting Wen (56.22) Marina Chan (58.78) Rachel Tseng (58.66) | 3:51.10 | |
| 19 | 2 | 0 | Turkey | Gizem Bozkurt (58.33) Ekaterina Avramova (55.92) Merve Eroglu (1:00.89) Halime Zülal Zeren (58.08) | 3:53.22 | |
| | 2 | 7 | Finland | Hanna-Maria Seppälä (55.83) Mimosa Jallow (55.43) Roosa Mört (57.26) Fanny Teijonsalo (DSQ) | DSQ | |

### Final

The final was held at 18:45.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 5 | Australia | Emily Seebohm (53.92) Emma McKeon (53.57) Bronte Campbell (51.77) Cate Campbell (52.22) | 3:31.48 | CR |
| | 3 | Netherlands | Ranomi Kromowidjojo (53.30) Maud van der Meer (54.50) Marrit Steenbergen (53.88) Femke Heemskerk (51.99) | 3:33.67 | |
| | 4 | United States | Missy Franklin (53.68) Margo Geer (54.14) Lia Neal (53.70) Simone Manuel (53.09) | 3:34.61 | |
| 4 | 6 | Sweden | Michelle Coleman (54.43) Louise Hansson (53.84) Sarah Sjöström (52.38) Magdalena Kuras (55.06) | 3:35.71 | |
| 5 | 2 | Canada | Sandrine Mainville (53.85) Michelle Williams (54.54) Chantal van Landeghem (53.51) Katerine Savard (54.54) | 3:36.44 | NR |
| 6 | 1 | Italy | Erika Ferraioli (54.80) Silvia Di Pietro (53.63) Laura Letrari (55.00) Federica Pellegrini (53.73) | 3:37.16 | NR |
| 7 | 7 | China | Zhu Menghui (54.38) Tang Yuting (54.45) Fang Yi (54.98) Shen Duo (53.83) | 3:37.64 | |
| 8 | 8 | France | Charlotte Bonnet (54.10) Béryl Gastaldello (54.89) Cloé Hache (54.84) Anna Santamans (54.63) | 3:38.46 | |