# Swimming at the 2001 World Aquatics Championships – Women's 4 × 100 metre freestyle relay

The women's 4 × 100 metre freestyle relay event at the 2001 World Aquatics Championships took place in Marine Messe in Fukuoka, Japan on 23 July 2001.
At the start of the event, the World (WR) and Championship (CR) records were:
* WR: 3:36.61 swum by United States on September 16, 2000, in Sydney, Australia.
* CR: 3:37.91 swum by China on September 7, 1994, in Rome, Italy.

## Results
### Heats

| Place | Heat | Lane | Nation | Swimmers (split) | Time | Notes |
| 1 | 1 | 5 | Germany | Petra Dallmann (55.80) Antje Buschschulte (54.53) Katrin Meissner (54.94) Meike Freitag (56.13) | 3:41.40 | Q |
| 2 | 2 | 4 | United States | Tammie Stone (55.75) Stefanie Williams (55.84) Erin Phenix (54.74) Courtney Shealy (55.16) | 3:41.49 | Q |
| 3 | 2 | 3 | Australia | Sarah Ryan (55.14) Elka Graham (55.42) Jodie Henry (55.81) Giaan Rooney (55.39) | 3:41.76 | Q |
| 4 | 1 | 3 | United Kingdom | Alison Sheppard (55.97) Melanie Marshall (55.48) Rosalind Brett (55.09) Karen Pickering (55.38) | 3:41.92 | Q |
| 5 | 2 | 6 | China | Yang Yu (55.95) Han Xue (56.41) Zhu Yingwen (55.75) Xu Yanwei (54.77) | 3:42.88 | Q |
| 6 | 2 | 5 | Sweden | Johanna Sjöberg (56.33) Josefin Lillhage (55.76) Cathrin Carlzon (56.13) Therese Alshammar (55.01) | 3:43.23 | Q |
| 7 | 1 | 6 | Italy | Luisa Striani (56.07) Cristina Chiuso (56.16) Sara Parise (56.38) Cecilia Vianini (54.97) | 3:43.58 | Q |
| 8 | 2 | 2 | Japan | Tomoko Nagai (56.16) Maki Mita (55.84) Eri Yamanoi (56.81) Sumika Minamoto (54.90) | 3:43.71 | Q |
| 9 | 1 | 2 | Canada | Laura Nicholls (56.25) Marianne Limpert (55.66) Jessica Deglau (56.92) Sophie Simard (57.20) | 3:46.03 | |
| 10 | 1 | 4 | Netherlands | Manon van Rooijen (56.75) Chantal Groot (56.34) Hinkelien Schreuder (56.11) Wilma van Hofwegen (57.34) | 3:46.54 | |
| 11 | 1 | 7 | Singapore | Christel Bouvron (59.95) Rebecca Heng (1:02.95) Nicolette Teo (59.56) Jacqueline Lim (59.57) | 4:02.03 | |
| 12 | 2 | 7 | Chinese Taipei | Sung Yi-Chien (1:00.01) Lin Chi-Chan (58.98) Lee Huei-Yun (1:03.44) Kuan Chia-Hsien (1:00.22) | 4:02.65 | |
| 13 | 2 | 1 | Macau | Weng Tong Cheong (1:02.41) Wai Man Lam (1:04.04) Weng Lam Cheong (1:04.65) Shun Kwan Andrea Chum (1:03.67) | 4:14.77 | |

### Final

| Place | Lane | Nation | Swimmers (split) | Time |
| | 4 | Germany | Petra Dallmann (55.33) Antje Buschschulte (55.13) Katrin Meissner (54.07) Sandra Völker (55.05) | 3:39.58 |
| | 6 | United Kingdom | Alison Sheppard (56.15) Melanie Marshall (55.22) Rosalind Brett (54.76) Karen Pickering (54.67) | 3:40.80 |
| | 5 | United States | Colleen Lanne (56.15) Erin Phenix (54.68) Maritza Correia (54.94) Courtney Shealy (55.03) | 3:40.80 |
| 4 | 7 | Sweden | Josefin Lillhage (56.19) Johanna Sjöberg (54.79) Therese Alshammar (54.58) Anna-Karin Kammerling (55.62) | 3:41.18 |
| 5 | 2 | China | Yang Yu (55.89) Han Xue (55.77) Zhu Yingwen (55.31) Xu Yanwei (54.35) | 3:41.32 |
| 6 | 3 | Australia | Sarah Ryan (55.22) Petria Thomas (55.68) Lori Munz (55.57) Giaan Rooney (55.54) | 3:42.01 |
| 7 | 8 | Japan | Tomoko Nagai (56.00) Maki Mita (55.83) Sumika Minamoto (55.04) Eri Yamanoi (56.20) | 3:43.07 |
| 8 | 1 | Italy | Luisa Striani (56.64) Cristina Chiuso (56.11) Sara Parise (56.06) Cecilia Vianini (55.86) | 3:44.67 |