La competició de natació al Campionat del Món de natació de 2005 es realitzà a les instal·lacions del Centre Aquàtic d'Île Sainte-Hélène de la ciutat de Mont-real (Canadà).
Resum de medalles Categoria masculina 50 m, lliures Roland Schoeman 21,69 (RC) Duje Draganja 21,89 Bartosz Kizierowski 21,94100 m, lliures Filippo Magnini 48,12 (RC) Roland Schoeman 48,28 Ryk Neethling 48,34200 m, lliures Michael Phelps 1:45,20 Grant Hackett 1:46,14 Ryk Neethling 1:46,63400 m, lliures Grant Hackett 3:42,91 Yuri Prilukov 3:44,44 Oussama Mellouli 3:46,08800 m, lliures Grant Hackett 7:38,65 (RM) Larsen Jensen 7:45,63 Yuri Prilukov 7:46,641500 m, lliures Grant Hackett 14:42,58 Larsen Jensen 14:47,58 David Davies 14:48,1150 m, esquena Aristeidis Grigoriadis 24,95 Matt Welsh 24,99 Liam Tancock 25,02100 m, esquena Aaron Peirsol 53,62 Randall Bal 54,02 László Cseh 54,27200 m, esquena Aaron Peirsol 1:54,66 (RM) Markus Rogan 1:56,63 Ryan Lochte 1:57,0050 m, braça Mark Warnecke 27,63 Mark Gangloff 27,71 Kosuke Kitajima 27,78100 m, braça Brendan Hansen 59,37 (RM) Kosuke Kitajima 59,53 Hugues Duboscq 1:00,20200 m, braça Brendan Hansen 2:09,85 Mike Brown 2:11,22 Genki Imamura 2:11,5450 m, papallona Roland Schoeman 22,96 (RM) Ian Crocker 23,12 Sergiy Breus 23,38100 m, papallona Ian Crocker 50,40 (RM) Michael Phelps 51,65 Andriy Serdinov 52,08200 m, papallona Paweł Korzeniowski 1:55,02 Takeshi Matsuda 1:55,62 Wu Peng 1:56,50200 m, estils Michael Phelps 1:56,68 László Cseh 1:57,61 Ryan Lochte 1:57,79400 m, estils László Cseh 4:09,63 Luca Marin 4:11,67 Oussama Mellouli 4:13,47relleus 4×100 m, lliures Michael Phelps Neil Walker Nate Dusing Jason Lezak 3:13,77 (RC) Yannick Lupien Rick Say Mike Mintenko Brent Hayden 3:16,44 Michael Klim Andrew Mewing Leith Brodie Patrick Murphy 3:17,56relleus 4×200 m, lliures Michael Phelps Ryan Lochte Peter Vanderkaay Klete Keller 7:06,58 Brent Hayden Colin Russell Rick Say Andrew Hurd 7:09,73 Nicholas Sprenger Patrick Murphy Andrew Mewing Grant Hackett 7:10,59relleus 4×100 m, estils Aaron Peirsol Brendan Hansen Ian Crocker Jason Lezak 3:31,85 Arkady Vyatchanin Dmitry Komornikov Igor Marchenko Andrey Kapralov 3:35,08 Tomomi Morita Kosuke Kitajima Ryo Takayasu Daisuke Hosokawa 3:35,40 Llegenda:
Categoria femenina 50 m, lliures Libby Lenton 24,59 Marleen Veldhuis 24,83 Zhu Yingwen 24,91100 m, lliures Jodie Henry 54,18 Malia Metella Natalie Coughlin 54,74 no es concedí 200 m, lliures Solenne Figuès 1:58,60 Federica Pellegrini 1:58,73 Josefin Lillhage Yang Yu 1:59,08400 m, lliures Laure Manaudou 4:06,44 Ai Shibata 4:06,74 Caitlin McClatchey 4:07,25800 m, lliures Kate Ziegler 8:25,31 Brittany Reimer 8:27,59 Ai Shibata 8:27,861500 m, lliures Kate Ziegler 16:00,41 Flavia Rigamonti 16:04:34 Brittany Reimer 16:07,7350 m, esquena Giaan Rooney 28,63 Gao Chang 28,69 Antje Buschschulte 28,72100 m, esquena Kirsty Coventry 1:00,24 Antje Buschschulte 1:00,84 Natalie Coughlin 1:00,88200 m, esquena Kirsty Coventry 2:08,52 Margaret Hoelzer 2:09,94 Reiko Nakamura 2:10,4150 m, braça Jade Edmistone 30,45 (RM) Jessica Hardy 30,85 Brooke Hanson 30,89100 m, braça Leisel Jones 1:06,25 Jessica Hardy 1:06,62 Tara Kirk 1:07,43200 m, braça Leisel Jones 2:21,72 (RM) Anne Poleska 2:25,84 Mirna Jukić 2:27,1150 m, papallona Danni Miatke 26,11 Anna-Karin Kammerling 26,36 Therese Alshammar 26,39100 m, papallona Jessicah Schipper 57,23 (RC) Libby Lenton 57,37 Otylia Jędrzejczak 58,57200 m, papallona Otylia Jędrzejczak 2:05,61 (RM) Jessicah Schipper 2:05,65 Yuko Nakanishi 2:09,40200 m, estils Katie Hoff 2:10,41 (RC) Kirsty Coventry 2:11,13 Lara Carroll 2:13,32400 m, estils Katie Hoff 4:36,07 (RC) Kirsty Coventry 4:39,72 Kaitlin Sandeno 4:40,85relleus 4×100 m, lliures Jodie Henry Alice Mills Shayne Reese Libby Lenton 3:37,32 (RC) Petra Dallmann Antje Buschschulte Annika Liebs Daniela Gotz 3:38,24 Natalie Coughlin Kara Lynn Joyce Lacey Nymeyer Amanda Weir 3:38,31relleus 4×200 m, lliues Natalie Coughlin Katie Hoff Whitney Myers Kaitlin Sandeno 7:53,70 (RC) Libby Lenton Shayne Reese Bronte Barratt Linda Mackenzie 7:54,06 Zhu Yingwen Pang Jiaying Zhou Yafei Yang Yu 7:57,29relleus 4×100 m, estils Sophie Edington Leisel Jones Jessicah Schipper Libby Lenton 3:57,47 (RC) Natalie Coughlin Jessica Hardy Rachel Komisarz Amanda Weir 3:59,92 Antje Buschschulte Sarah Poewe Annika Mehlhorn Daniela Gotz 4:02,51 Llegenda:
Medaller 1 15 11 6 32 2 13 5 4 22 3 2 2 0 4 4 2 1 2 5 5 2 1 1 4 6 2 0 2 4 7 1 3 2 6 8 1 2 0 3 9 1 1 1 3 10 1 0 0 1 11 0 4 1 5 12 0 3 6 9 13 0 2 1 3 14 0 1 4 5 15 0 1 2 3 16 0 1 1 2 17 0 1 0 1 0 1 0 1 0 1 0 1 20 0 0 3 3 21 0 0 2 2 0 0 2 2 Total 40 41 40 121
Categoria:Campionat del Món de natació de 2005