| Event: | Women's 50m Backstroke |
| Competition: | 2005 FINA World Aquatics Championships |
| Dates: | 27 July (heats and semifinals) 28 July (final) |
| Competitors: | 65 |
| Nations: | 47 |
| Win Value: | 28.63 seconds |
| Gold: | Giaan Rooney |
| Goldnoc: | AUS |
| Silver: | Gao Chang |
| Silvernoc: | CHN |
| Bronze: | Antje Buschschulte |
| Bronzenoc: | GER |
| Prev: | 2003 |
| Next: | 2007 |
See main article: Swimming at the 2005 World Aquatics Championships.
The Women's 50 Backstroke event at the 11th FINA World Aquatics Championships was swum 27 - 28 July 2005 in Montreal, Quebec, Canada. Preliminary (morning) and Semifinal (evening) heats were on 27 July,[1] [2] with the event's Final heat swum during the evening session on 28 July.[3]
At the start of the vent, the existing World (WR) and Championships (CR) records were:
| Rank | Heat + Lane | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|---|
| 1 | H7 L4 | GAO Chang | 28.70 | q | |
| 2 | H7 L5 | Mai Nakamura | 28.92 | q | |
| 3 | H9 L4 | Janine Pietsch | 28.95 | q | |
| 4 | H8 L4 | Giaan Rooney | 28.99 | q | |
| 4 | H9 L5 | Antje Buschschulte | 28.99 | q | |
| 6 | H6 L4 | Elizabeth Coster | 29.05 | q | |
| 7 | H8 L1 | Hannah McLean | 29.06 | q | |
| 8 | H9 L6 | Fabienne Nadarajah | 29.14 | q | |
| 9 | H8 L5 | Sophie Edington | 29.22 | q | |
| 10 | H8 L7 | Svitlana Khakhlova | 29.23 | q | |
| 10 | H9 L3 | Louise Ørnstedt | 29.23 | q | |
| 12 | H7 L3 | Hinkelien Schreuder | 29.25 | q | |
| 13 | H7 L1 | Nam-Eun Lee | 29.26 | q | |
| 14 | H9 L1 | Sanja Jovanović | 29.27 | q | |
| 15 | H9 L7 | Fabíola Molina | 29.40 | q | |
| 16 | H7 L7 | Erin Gammel | 29.44 | q | |
| 17 | H8 L3 | Hanae Ito | 29.45 | ||
| 18 | H8 L6 | Jennifer Carroll | 29.55 | ||
| 19 | H9 L2 | Iryna Amshennikova | 29.59 | ||
| 20 | H8 L2 | Chen Yanyan | 29.63 | ||
| 21 | H7 L6 | Elena Gemo | 29.65 | ||
| 22 | H7 L8 | Kateryna Zubkova | 29.68 | ||
| 23 | H6 L1 | Margaret Hoelzer | 29.71 | ||
| 24 | H5 L2 | Anna Gostomelsky | 29.79 | ||
| 25 | H7 L2 | Ilona Hlaváčková | 29.97 | ||
| 26 | H6 L7 | Katarzyna Staszak | 30.11 | ||
| 27 | H9 L8 | Gisela Morales | 30.12 | ||
| 28 | H5 L4 | Jeri Moss | 30.16 | ||
| 29 | H8 L8 | Alexandra Putra | 30.28 | ||
| 30 | H6 L8 | Petra Klosova | 30.34 | ||
| 31 | H5 L3 | Kiera Aitken | 30.36 | ||
| 32 | H5 L7 | Hannah Wilson | 30.52 | ||
| 33 | H5 L5 | Hanna-Maria Seppälä | 30.55 | ||
| 34 | H4 L4 | Marilies Demal | 30.70 | ||
| 35 | H6 L3 | Jane Kaljonen | 30.82 | ||
| 36 | H6 L2 | Yu Yon Kim | 30.96 | ||
| 37 | H6 L5 | Flavia Cazziolato | 30.99 | ||
| 38 | H6 L6 | Chonlathorn Vorathamrong | 31.17 | ||
| 39 | H5 L1 | Lynette Ng | 31.19 | ||
| 40 | H5 L8 | Carolina Colorado Henao | 31.31 | ||
| 41 | H5 L6 | Ting-Wei Lin | 31.63 | ||
| 42 | H4 L8 | Lenient Obia | 31.79 | ||
| 43 | H4 L2 | Danit Kama | 32.17 | ||
| 44 | H4 L6 | Fatima Valderrama | 32.38 | ||
| 45 | H4 L7 | Khadija Ciss | 32.45 | ||
| 46 | H4 L3 | Saida Iskandarova | 32.47 | ||
| 47 | H3 L6 | Nicole Marmol | 32.63 | ||
| 48 | H4 L1 | Mireille Hakimeh | 32.79 | ||
| 49 | H3 L4 | Cheok Mei Ma | 32.93 | ||
| 50 | H3 L8 | Imane Boulaamane | 33.13 | ||
| 50 | H4 L5 | Laura Rodriguez | 33.13 | ||
| 52 | H2 L6 | Ellen Hight | 33.22 | ||
| 53 | H3 L2 | Jonay Briedenhann | 33.46 | ||
| 54 | H3 L1 | Kiran Khan | 33.61 | ||
| 55 | H2 L5 | Prabha Madhavi Dharmadasa | 33.73 | ||
| 56 | H3 L7 | Jessica Vieira | 34.09 | ||
| 57 | H3 L3 | Weng I Kuan | 34.11 | ||
| 58 | H3 L5 | Ruth Ho | 34.13 | ||
| 59 | H2 L4 | Rubab Raza | 34.66 | ||
| 60 | H2 L2 | Jakie Wellman | 34.74 | ||
| 61 | H1 L4 | Yelena Rojkova | 35.33 | ||
| 62 | H2 L7 | Mbolatiana Ramanisa | 35.45 | ||
| 63 | H2 L3 | Sussie Pineda | 35.46 | ||
| 64 | H1 L3 | Debra Daniel | 35.97 | ||
| 65 | H1 L5 | Natasaha Ratter | 37.89 | ||
| Rank | Heat + Lane | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|---|
| 1 | S2 L4 |  China | 28.31 | q, CR | |
| 2 | S1 L5 |  Australia | 28.78 | q | |
| 3 | S1 L4 |  Japan | 28.87 | q | |
| 3 | S2 L2 | Australia | 28.87 | q | |
| 5 | S2 L3 | Germany | 28.90 | q | |
| 6 | S2 L5 | Germany | 28.93 | q | |
| 7 | S2 L1 |  South Korea | 28.95 | q | |
| 8 | S2 L6 |  New Zealand | 28.99 | q | |
| 9 | S2 L7 | Denmark | 29.03 | ||
| 10 | S1 L1 | Sanja Jovanović | Croatia | 29.06 | |
| 11 | S1 L3 | New Zealand | 29.15 | ||
| 12 | S1 L6 |  Austria | 29.19 | ||
| 13 | S1 L8 |  Canada | 29.35 | ||
| 14 | S2 L8 |  Brazil | 29.39 | ||
| 15 | S1 L2 |  Belarus | 29.41 | ||
| 16 | S1 L7 | Netherlands | 29.61 | ||
| Rank | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|
| Australia | 28.63 | |||
| China | 28.69 | |||
| Germany | 28.72 | |||
| 4 | Japan | 28.86 | ||
| 5 | Australia | 28.87 | ||
| 6 | Germany | 28.88 | ||
| 7 | New Zealand | 28.90 | ||
| 8 | South Korea | 29.35 | ||