# Swimming at the 2007 World Aquatics Championships – Men's 50 metre breaststroke

The men's 50 metre breaststroke at the 2007 World Aquatics Championships took place on 27 March (heats and semifinals) and on the evening of 28 March (final) at Rod Laver Arena in Melbourne, Australia. 136 swimmers were entered in the event, of which 127 swam.
Existing records at the start of the event were:
* World record (WR): 27.18, Oleg Lisogor (Ukraine), 2 August 2002 in Berlin, Germany.
* Championship record (CR): 27.46, James Gibson (Great Britain), Barcelona 2003 (22 July 2003)

## Results
### Finals

| Place | Name | Nationality | Time |
| 1 | Oleg Lisogor | Ukraine | 27.66 |
| 2 | Brendan Hansen | USA | 27.69 |
| 3 | Cameron van der Burgh | South Africa | 27.88 |
| 4 | Alessandro Terrin | Italy | 28.09 |
| 5 | Kosuke Kitajima | Japan | 28.10 |
| 6 | Michael Malul | Israel | 28.19 |
| 7 | Brenton Rickard | Australia | 28.24 |
| 8 | Valeriy Dymo | Ukraine | 28.27 |

### Semifinals

| Rank | Swimmer | Nation | Time | Note |
| 1 | Brendan Hansen | USA | 27.51 | Q |
| 2 | Oleg Lisogor | Ukraine | 27.53 | Q |
| 3 | Alessandro Terrin | Italy | 27.55 | Q |
| 4 | Kosuke Kitajima | Japan | 27.89 | Q |
| 5 | Valeriy Dymo | Ukraine | 27.97 | Q |
| 6 | Brenton Rickard | Australia | 27.98 | Q |
| 7 | Cameron van der Burgh | South Africa | 27.99 | Q |
| 8 | Michael Malul | Israel | 28.08 | Q |
| 9 | Roman Sloudnov | Russia | 28.09 | |
| 10 | Robin van Aggele | Netherlands | 28.10 | |
| 11 | James Gibson | Great Britain | 28.21 | |
| 12 | Hugues Duboscq | France | 28.36 | |
| 13 | Mladen Tepavčević | Serbia | 28.38 | |
| 14 | Emil Tahirovič | Slovenia | 28.40 | |
| 15 | Matjaž Markič | Slovenia | 28.45 | |
| 16 | Wang Haibo | China | 28.66 | |

## Heats

| Rank | Swimmer | Nation | Time | Note |
| 1 | Cameron van der Burgh | South Africa | 27.49 | Q |
| 2 | Alessandro Terrin | Italy | 27.53 | Q |
| 3 | Brendan Hansen | USA | 27.64 | Q |
| 4 | Oleg Lisogor | Ukraine | 27.69 | Q |
| 5 | Brenton Rickard | Australia | 27.80 | Q |
| 6 | Michael Malul | Israel | 27.92 | Q |
| 7 | Kosuke Kitajima | Japan | 27.97 | Q |
| 8 | Valeriy Dymo | Ukraine | 28.04 | Q |
| 9 | James Gibson | Great Britain | 28.06 | Q |
| 10 | Roman Sloudnov | Russia | 28.11 | Q |
| 11 | Wang Haibo | China | 28.12 | Q |
| 12 | Matjaž Markič | Slovenia | 28.15 | Q |
| 13 | Hugues Duboscq | France | 28.17 | Q |
| 14 | Emil Tahirovič | Slovenia | 28.18 | Q |
| 15 | Mladen Tepavčević | Serbia | 28.24 | Q |
| 16 | Robin van Aggele | Netherlands | 28.25 | Q |
| 17 | Mark Warnecke | Germany | 28.28 | |
| 18 | Mihail Alexandrov | Bulgaria | 28.34 | |
| 19 | Jiri Jedlicka | Czech Republic | 28.39 | |
| 20 | Darren Mew | Great Britain | 28.43 | |
| 21 | Alexander Dale Oen | Norway | 28.48 | |
| 22 | Aleksander Hetland | Norway | 28.49 | |
| 23 | Johannes Neumann | Germany | 28.50 | |
| 24 | Felipe Lima | Brazil | 28.54 | |
| 25 | Henrique Barbosa | Brazil | 28.58 | |
| 26 | Qu Jingyu | China | 28.62 | |
| 27 | Glenn Snyders | New Zealand | 28.64 | |
| 28 | Scott Usher | USA | 28.68 | |
| 29 | Thabang Moeketsane | South Africa | 28.78 | |
| 29 | Valentin Preda | Romania | 28.78 | |
| 31 | Giedrius Titenis | Lithuania | 28.82 | |
| 32 | Malick Fall | Senegal | 28.85 | |
| 33 | Sławomir Wolniak | Poland | 28.87 | |
| 34 | Mike Brown | Canada | 28.90 | |
| 35 | Maxim Podoprigora | Austria | 28.91 | |
| 36 | Dmitry Komornikov | Russia | 29.00 | |
| 37 | Jakob Jóhann Sveinsson | Iceland | 29.02 | |
| 38 | Makoto Yamashita | Japan | 29.06 | |
| 39 | Andrei Cross | Barbados | 29.08 | |
| 40 | Damien Courtois | Switzerland | 29.28 | |
| 41 | Mohammad Alirezaei | Iran | 29.31 | |
| 42 | Edvinas Dautartas | Lithuania | 29.32 | |
| 43 | Nikola Delic | Croatia | 29.36 | |
| 44 | Martin Liivamägi | Estonia | 29.38 | |
| 44 | Wael Koubrously | Lebanon | 29.38 | |
| 46 | Alwin de Prins | Luxembourg | 29.44 | |
| 47 | Edgar Robert Crespo | Panama | 29.51 | |
| 48 | Miguel Molina | Philippines | 29.56 | |
| 49 | Sergiu Postica | Moldova | 29.59 | |
| 50 | Mikalai Vasilyeu | Belarus | 29.67 | |
| 51 | Andrei Capitanciuc | Moldova | 29.68 | |
| 52 | Hsin Hung Chiang | Chinese Taipei | 29.69 | |
| 53 | Rainui Terupaia | Tahiti | 29.74 | |
| 54 | Martti Aljand | Estonia | 29.76 | |
| 55 | Vidvuds Maculevics | Latvia | 29.83 | |
| 56 | Adam Lucas | Australia | 29.84 | |
| 57 | Tom Be'eri | Israel | 29.92 | |
| 58 | Yevgeniy Ryzhkov | Kazakhstan | 30.02 | |
| 59 | Kirils Sanzarovecs | Latvia | 30.04 | |
| 60 | Wei-Xiong Parker Lam | Singapore | 30.14 | |
| 61 | Josh Laban | Virgin Islands | 30.21 | |
| 62 | Kevin Hensley | Virgin Islands | 30.22 | |
| 63 | Billy Arfianto | Indonesia | 30.27 | |
| 64 | Milan Glamocic | Bosnia and Herzegovina | 30.32 | |
| 65 | Sujong Sin | South Korea | 30.35 | |
| 65 | Francisco Picasso Risso | Uruguay | 30.35 | |
| 67 | Herry Yudhianto | Indonesia | 30.47 | |
| 68 | Jin Leonard Tan | Singapore | 30.55 | |
| 69 | Eric Williams | Nigeria | 30.56 | |
| 70 | Wei Wen Wang | Chinese Taipei | 30.59 | |
| 71 | Gerard Bordado | Philippines | 30.71 | |
| 71 | Antonio Manuel Leon Candia | Paraguay | 30.71 | |
| 73 | Genaro Mathias Prono Britez | Paraguay | 30.91 | |
| 74 | Amar Shah | Kenya | 31.08 | |
| 75 | See Tuan Yap | Malaysia | 31.19 | |
| 76 | Chisela Kanchela | Zambia | 31.25 | |
| 77 | Rodion Davelaar | Netherlands Antilles | 31.46 | |
| 78 | Youssef Hafdi | Morocco | 31.60 | |
| 79 | Onan Thom | Guyana | 31.69 | |
| 80 | Eric Arturo Medina Su | Panama | 31.92 | |
| 81 | Erik Rajohnson | Madagascar | 31.96 | |
| 82 | Butekhuils Boldbaatar | Mongolia | 32.00 | |
| 83 | Celestino Aguon | Guam | 32.11 | |
| 84 | Alexander Rivero | Bolivia | 32.16 | |
| 85 | Joao Matias | Angola | 32.25 | |
| 86 | Omar Jasim | Brunei | 32.33 | |
| 87 | Jehad Al Henidi | Jordan | 32.40 | |
| 88 | Khaly Ciss | Senegal | 32.43 | |
| 89 | Jamie Zammitt | Gibraltar | 32.59 | |
| 90 | Melvin Chua | Malaysia | 32.50 | |
| 91 | Hong Nam Lei | Macao | 32.66 | |
| 92 | Chakyl Camal | Mozambique | 32.74 | |
| 93 | Heimanu Sichan | Tahiti | 32.78 | |
| 94 | Hei Meng Lao | Macao | 32.79 | |
| 95 | Guvanch Ataniyazov | Turkmenistan | 33.03 | |
| 96 | Kevin Cheung | Mauritius | 33.26 | |
| 97 | Neil Agius | Malta | 33.34 | |
| 98 | Aram Nazaryan | Armenia | 33.44 | |
| 99 | Varun Divgikar | India | 33.73 | |
| 100 | Sadeq Damrah | Palestine | 33.86 | |
| 101 | Eli Ebenezer Wong | Northern Mariana Islands | 33.89 | |
| 102 | Tony Augustine | Federated States of Micronesia | 33.96 | |
| 103 | Monder Al-Jabali | Libya | 34.01 | |
| 104 | Timur Kartabaev | Kyrgyzstan | 34.16 | |
| 105 | Julio Smith | Seychelles | 34.18 | |
| 106 | Hassan Ashraf | Maldives | 34.67 | |
| 107 | Joshua Marfleet | Samoa | 34.88 | |
| 108 | A. Aldhaheri | United Arab Emirates | 35.00 | |
| 109 | Justine Rodriguez | Federated States of Micronesia | 36.10 | |
| 110 | Niall Roberts | Guyana | 36.31. | |
| 111 | Stephenson Wallace | Saint Vincent   and the Grenadines | 37.02 | |
| 112 | Justin Decoster | Marshall Islands | 37.43 | |
| 113 | Petero Okotai | Cook Islands | 37.86 | |
| 114 | Rahim Karmali | Uganda | 38.00 | |
| 115 | Aymard Lumuamu-Dimbu | Congo | 38.16 | |
| 116 | M. Alhousseini Alhassan | Niger | 38.50 | |
| 117 | Bulguitei Buyankhishig | Mongolia | 38.91 | |
| 118 | Vincent Leatualevao | American Samoa | 39.46 | |
| 119 | Iglay Dangassat-Sissoulou | Congo | 39.47 | |
| 120 | Ahmed Adam | Sudan | 40.81 | |
| 121 | Boipelo Makhothi | Lesotho | 41.91 | |
| 122 | Lehlohonolo Moromella | Lesotho | 42.93 | |
| 123 | Robert Scanlan | American Samoa | 43.24 | |
| 124 | Giordan Harris | Marshall Islands | 47.28 | |
| 125 | Gibrilla Bamba | Sierra Leone | 55.11 | |
| -- | Anthony Kpetonky | Ghana | DQ | |
| -- | Moustafa Al-Saleh | Syria | DQ | |
| -- | Rene Jacob Yougbare | Burkina Faso | DNS | |
| -- | Salfo Ilbouda | Burkina Faso | DNS | |
| -- | Akibou Yacouba Ali Maiga | Niger | DNS | |
| -- | Yacoub Salem Bilal | Mauritania | DNS | |
| -- | Essossimana Awizoba | Togo | DNS | |
| -- | Joao Aguiar | Angola | DNS | |
| -- | Shajahan Ali Rony | Bangladesh | DNS | |
| -- | Osama Al Araj | Qatar | DNS | |
| -- | Vanja Rogulj | Croatia | DNS | |