# Swimming at the 2015 World Aquatics Championships – Women's 50 metre breaststroke

The Women's 50 metre breaststroke competition of the swimming events at the 2015 World Aquatics Championships was held on 8 August with the heats and the semifinals and 9 August with the final.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Rūta Meilutytė (LTU) | 29.48 | Barcelona, Spain | 3 August 2013 |
| Competition record | Rūta Meilutytė (LTU) | 29.48 | Barcelona, Spain | 3 August 2013 |

## Results
### Heats

The heats were held on 8 August at 10:08.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 8 | 4 | Rūta Meilutytė | Lithuania | 29.74 | Q |
| 2 | 6 | 4 | Alia Atkinson | Jamaica | 30.27 | Q |
| 3 | 7 | 5 | Jennie Johansson | Sweden | 30.30 | Q |
| 4 | 7 | 4 | Jessica Hardy | United States | 30.44 | Q |
| 5 | 8 | 5 | Yuliya Yefimova | Russia | 30.45 | Q |
| 6 | 8 | 3 | Mariya Liver | Ukraine | 30.60 | Q, NR |
| 7 | 6 | 7 | Fanny Lecluyse | Belgium | 30.75 | Q, NR |
| 8 | 7 | 6 | Jenna Laukkanen | Finland | 30.79 | Q, NR |
| 9 | 6 | 5 | Moniek Nijhuis | Netherlands | 30.81 | Q |
| 10 | 7 | 3 | Martina Carraro | Italy | 30.83 | Q |
| 11 | 7 | 7 | Rachel Nicol | Canada | 30.86 | Q |
| 12 | 8 | 7 | Arianna Castiglioni | Italy | 30.90 | Q |
| 12 | 8 | 1 | Hrafnhildur Lúthersdóttir | Iceland | 30.90 | Q, NR |
| 14 | 8 | 0 | Suo Ran | China | 31.12 | Q |
| 15 | 8 | 2 | Petra Chocová | Czech Republic | 31.21 | Q |
| 16 | 6 | 2 | Lorna Tonks | Australia | 31.22 | Q |
| 17 | 7 | 2 | Fiona Doyle | Ireland | 31.31 | |
| 18 | 5 | 6 | Dominika Sztandera | Poland | 31.34 | NR |
| 19 | 6 | 3 | Micah Lawrence | United States | 31.38 | |
| 20 | 8 | 8 | Amit Ivry | Israel | 31.39 | |
| 21 | 7 | 9 | Jhennifer Conceição | Brazil | 31.44 | |
| 22 | 6 | 1 | Viktoriya Zeynep Gunes | Turkey | 31.45 | |
| 23 | 6 | 6 | Rikke Møller Pedersen | Denmark | 31.48 | |
| 24 | 7 | 8 | Shi Jinglin | China | 31.57 | |
| 25 | 5 | 1 | Aikaterini Sarakatsani | Greece | 31.58 | |
| 26 | 6 | 9 | Alina Zmushka | Belarus | 31.65 | |
| 26 | 7 | 1 | Veera Kivirinta | Finland | 31.65 | |
| 26 | 8 | 6 | Sycerika McMahon | Ireland | 31.65 | |
| 29 | 5 | 7 | Lena Kreundl | Austria | 31.83 | |
| 30 | 5 | 0 | Mercedes Toledo | Venezuela | 31.88 | NR |
| 31 | 5 | 5 | Rie Kaneto | Japan | 31.99 | |
| 32 | 6 | 8 | Tjaša Vozel | Slovenia | 32.00 | |
| 33 | 6 | 0 | Martina Moravčíková | Czech Republic | 32.08 | |
| 34 | 5 | 3 | Anna Sztankovics | Hungary | 32.11 | |
| 35 | 5 | 4 | Julia Sebastian | Argentina | 32.13 | |
| 36 | 4 | 7 | Mai Atef | Egypt | 32.14 | |
| 37 | 8 | 9 | Maria Astashkina | Russia | 32.18 | |
| 38 | 4 | 4 | Lucia Ledererova | Slovakia | 32.20 | |
| 38 | 7 | 0 | Roanne Ho | Singapore | 32.20 | |
| 40 | 5 | 9 | Maria Romanjuk | Estonia | 32.30 | |
| 41 | 4 | 2 | Phee Phee Jinq En | Malaysia | 32.37 | |
| 42 | 5 | 8 | Tatiana Chișca | Moldova | 32.38 | |
| 43 | 5 | 2 | Yang Ji-won | South Korea | 32.63 | |
| 44 | 4 | 6 | Kong Yvette Man Yi | Hong Kong | 32.72 | |
| 45 | 4 | 9 | Evita Leter | Suriname | 33.19 | |
| 46 | 4 | 1 | Daniela Carrillo | Mexico | 33.53 | |
| 47 | 4 | 3 | Ivana Ninković | Bosnia and Herzegovina | 33.77 | |
| 48 | 4 | 5 | Dariya Talanova | Kyrgyzstan | 33.89 | |
| 49 | 4 | 0 | Lei On Kei | Macau | 33.94 | |
| 50 | 4 | 8 | Sin Jin-hui | North Korea | 34.02 | |
| 51 | 3 | 5 | Izzy Joachim | Saint Vincent and the Grenadines | 34.09 | |
| 52 | 3 | 3 | Amy Micallef | Malta | 34.78 | |
| 53 | 3 | 4 | Jamila Lunkuse | Uganda | 34.93 | |
| 54 | 3 | 6 | Chade Nersicio | Curaçao | 35.30 | |
| 55 | 3 | 2 | Oreoluwa Cherebin | Grenada | 35.39 | |
| 56 | 3 | 7 | Rechael Tonjor | Nigeria | 36.10 | |
| 57 | 3 | 0 | Bonita Imsirovic | Botswana | 36.46 | |
| 58 | 3 | 1 | Teona Bostashvili | Georgia | 37.37 | |
| 59 | 2 | 3 | Darya Semyonova | Turkmenistan | 37.64 | |
| 60 | 3 | 9 | Lianna Swan | Pakistan | 37.66 | |
| 61 | 2 | 6 | Hemthon Vitiny | Cambodia | 37.82 | |
| 62 | 2 | 5 | Angelika Ouedraogo | Burkina Faso | 39.25 | |
| 63 | 2 | 4 | Karina Klimyk | Tajikistan | 40.17 | |
| 64 | 2 | 2 | Daniah Hagul | Libya | 41.17 | |
| 65 | 1 | 7 | Bellore Sangala | Congo | 42.48 | |
| 66 | 2 | 9 | Siri Budcharern | Laos | 44.14 | |
| 67 | 1 | 6 | Mohamed Nazlati | Comoros | 45.75 | |
| 68 | 2 | 0 | Fatema Abdulmohsen | Bahrain | 45.91 | |
| 69 | 2 | 8 | Tayamika Chang'anamuno | Malawi | 47.00 | |
| 70 | 1 | 3 | Natasha Addai | Ghana | 51.73 | |
| 71 | 1 | 5 | Mariama Sow | Guinea | 52.65 | |
| 72 | 2 | 1 | Roukaya Mahamane | Niger | 52.88 | |
| 73 | 1 | 2 | Bunturabie Jalloh | Sierra Leone | 57.64 | |
| | 2 | 7 | Laraiba Seibou | Benin | | DSQ |
| | 1 | 4 | Liza Kafack | Cameroon | | DNS |
| | 3 | 8 | Kokoe Ahyee | Ivory Coast | | DNS |

### Semifinals

The semifinals were held on 8 August at 17.56.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Jessica Hardy | United States | 30.25 | Q |
| 2 | 3 | Mariya Liver | Ukraine | 30.64 | Q |
| 3 | 4 | Alia Atkinson | Jamaica | 30.78 | Q |
| 4 | 1 | Suo Ran | China | 31.03 | |
| 5 | 8 | Lorna Tonks | Australia | 31.05 | |
| 6 | 2 | Martina Carraro | Italy | 31.17 | |
| 6 | 7 | Arianna Castiglioni | Italy | 31.17 | |
| 8 | 6 | Jenna Laukkanen | Finland | 31.18 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Rūta Meilutytė | Lithuania | 29.98 | Q |
| 2 | 3 | Yuliya Yefimova | Russia | 30.14 | Q |
| 3 | 5 | Jennie Johansson | Sweden | 30.39 | Q |
| 4 | 1 | Hrafnhildur Lúthersdóttir | Iceland | 30.90 | Q, =NR |
| 5 | 2 | Moniek Nijhuis | Netherlands | 30.99 | Q |
| 6 | 7 | Rachel Nicol | Canada | 31.04 | |
| 6 | 6 | Fanny Lecluyse | Belgium | 31.04 | |
| 8 | 8 | Petra Chocová | Czech Republic | 31.40 | |

### Final

The final was held on 9 August at 17:39.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 6 | Jennie Johansson | Sweden | 30.05 | NR |
| | 7 | Alia Atkinson | Jamaica | 30.11 | NR |
| | 5 | Yuliya Yefimova | Russia | 30.13 | |
| 4 | 4 | Rūta Meilutytė | Lithuania | 30.14 | |
| 5 | 3 | Jessica Hardy | United States | 30.20 | |
| 6 | 8 | Suo Ran | China | 30.74 | |
| 7 | 1 | Hrafnhildur Lúthersdóttir | Iceland | 31.12 | |
| 8 | 2 | Mariya Liver | Ukraine | 31.14 | |