Svømming under VM i svømmesport 2009 – 400 meter fri kvinner

400 meter fri damer ved VM i svømming 2009 fant sted om morgenen 26. juli i Foro Italico i Roma.

Medaljevinnere
GullSølvBronseFederica PellegriniJoanne JacksonRebecca Adlington

Rekorder

Verdensrekord (VR) 4:00.41   Federica Pellegrini   Riccione  27. junl 2009Mesterskapsrekord (MR) 4:02.61   Laure Manaudou   Melbourne  25. mars 2007

Innledende heat
 Plassering  Navn  Nasjonalitet  Tid  Heat  Bane  Kommentarer 1   Federica Pellegrini    4:01.96  6  4 MR
|-bgcolor=ccffcc
| 2 ||align=left|  Allison Schmitt ||align=left|  || 4:02.80 || 6 || 3 ||
|-bgcolor=ccffcc
| 3 ||align=left| Joanne Jackson ||align=left|  || 4:03.48 || 5 || 4 ||
|-bgcolor=ccffcc
| 4 ||align=left| Coralie Balmy ||align=left|  || 4:04.12 || 5 || 5 || 
|-bgcolor=ccffcc
| 5 ||align=left| Camelia Potec ||align=left|  || 4:04.25 || 6 || 5 ||
|-bgcolor=ccffcc
| 6 ||align=left| Ophélie-Cyrielle Etienne ||align=left|  || 4:05.25 || 5 || 6 || 
|-bgcolor=ccffcc
| 7 ||align=left| Lotte Friis ||align=left|  || 4:05.40 || 4 || 3 || NR
|-bgcolor=ccffcc
| 8 ||align=left| Rebecca Adlington ||align=left|  || 4:05.70 || 4 || 4 ||
|- 
| 9 ||align=left| Ellen Fullerton ||align=left|  || 4:08.31 || 4 || 2 ||
|- 
| 10 ||align=left| Erika Villaécija García ||align=left|  || 4:08.77 || 5 || 2 ||
|- 
| 11 ||align=left| Jördis Steinegger ||align=left|  || 4:09.30 || 6 || 7 || NR
|- 
| 12 ||align=left| Cecilia Elizabeth Biagioli ||align=left|  || 4:10.16 || 4 || 1 ||SA''' 13  Chloe Sutton    4:10.88  6  6  14  Alexa Komarnycky    4:11.35  6  1  15  Wendy Trott    4:11.45  6  2  16  Maiko Fujino    4:11.52  6  0  17  Flavia Zoccari    4:11.58  5  7  18  Andreina Pinto    4:11.79  5  0 NR 19  Nuala Murphy    4:13.51  3  3  20  Savannah King    4:13.58  5  8  21  Patricia Castañeda    4:13.59  4  8   22  Quah Ting Wen    4:13.70  5  9 NR 23  Ren Junni    4:14.07  4  6  24  Jelena Sokolova    4:14.38  5  3  25  Susana Escobar    4:14.70  5  1  26  Yanel Pinto    4:14.74  3  6  27  Bronte Barratt    4:15.62  4  5  28  Natsumi Iwashita    4:15.95  4  7  29  Yang Chin-Kuei    4:15.96  6  9  30  Lynette Lim    4:16.35  3  7  31  Paula Żukowska    4:16.64  3  5  32  Ionela Cozma    4:16.79  2  2  33  Niamh O'Sullivan    4:16.80  3  4  34  Nina Cesar    4:17.22  4  0  35  Cho Youn Soo    4:17.59  3  1  36  Nika Karlina Petric    4:18.14  6  8  37  Heysi Villareal    4:20.94  3  0  38  Erica Cirila Totten    4:21.32  2  4  39  Pamela Benitez    4:21.58  3  9  40  Jeong Darae    4:22.99  2  5  41  Kristina Bernice Lennox    4:23.26  3  8  42  Khoo Cai Lin    4:24.48  4  9  43  Kimberley Eeson    4:27.89  3  2  44  Andrea Cedron    4:29.80  2  3  45  Kirsten Lapham    4:33.57  1  3  46  Ting Sheng-Yo    4:33.72  2  1  47  Daniela Kaori Miyahara Coello    4:33.75  2  6  48  Daniela Reyes Hinrichsen    4:34.09  2  7  49  Miriam Hatamleh    4:41.02  2  0  50  Nicole Huerta    4:41.73  1  5  51  Ayesha Noel    4:46.09  2  9  52  Vo Thi Thanh Vy    4:47.11  2  8  53  Diana Al Zamel    4:47.98  1  4  54  Sakina Ghulam    4:59.02  1  6  55  Estellah Fils Rabetsara    5:04.36  1  2  56  Tieri Erasito    5:10.01  1  7  57  Mahnoor Maqsood    5:18.16  1  8   —  Sara Abdullahu    DNS  1  1 

Finale
 Plassering  Navn  Nasjonalitet   Bane  Tid   Kommentarer    Federica Pellegrini    4  3:59.15  VR   Joanne Jackson    3  4:00.60  NR    Rebecca Adlington    8  4:00.79   4  Allison Schmitt    5   4:02.51    5  Coralie Balmy    6  4:03.29     6  Camelia Potec    2  4:03.41  NR 7  Ophélie-Cyrielle Etienne    7  4:04.54    8  Lotte Friis    1   4:07.62   

Eksterne lenker
 Worlds 2009 results: Women's 400m Free Prelims, from OmegaTiming.com (official Tidr of the 2009 Worlds); retrieved 2009-07-27.
 Worlds 2009 results: Women's 400m Free Finals, from OmegaTiming.com (official Tidr of the 2009 Worlds); retrieved 2009-07-27.

400 meter fri damer