# Swimming at the 2007 World Aquatics Championships – Men's 800 metre freestyle

The men's 800 metre freestyle was the 17th event of the swimming program at the 2007 World Aquatics Championships held in Rod Laver Arena in Melbourne, Australia. The event was swum on the morning of 27 March (heats) and in the evening of 28 March. 46 swimmers were entered in the event, of which 43 swam in one of 6 preliminary heats. The top-8 finishers from the prelims qualified ("Q") to swim in the final the next evening.
The existing records at the start of the event were:
* World record (WR): 7:38.65, Grant Hackett (Australia), 27 July 2005 in Montreal, Canada.
* Championship record (CR): same
On 11 September 2007, the Court of Arbitration for Sport stripped Oussama Mellouli of Tunisia of his gold medal and nullified his result as part of a retroactive 18-month suspension for an earlier doping violation.

## Results
### Final

| Place | Lane | Swimmer | Nationality | 100m | 200m | 300m | 400m | 500m | 600m | 700m | Time |
| | 7 | Przemysław Stańczyk | Poland | 57.31 | 1:57.10 | 2:56.02 | 3:55.36 | 4:54.21 | 5:52.59 | 6:50.91 | 7:47.91 |
| | 4 | Craig Stevens | Australia | 57.35 | 1:56.34 | 2:55.90 | 3:55.72 | 4:55.08 | 5:54.45 | 6:52.69 | 7:48.67 |
| | 5 | Federico Colbertaldo | Italy | 57.66 | 1:56.77 | 2:56.04 | 3:55.37 | 4:54.48 | 5:53.53 | 6:52.58 | 7:49.98 |
| 4th | 8 | Sébastien Rouault | France | 55.67 | 1:54.40 | 2:53.46 | 3:52.93 | 4:52.85 | 5:53.03 | 6:53.34 | 7:52.04 |
| 5th | 1 | Sergiy Fesenko | Ukraine | 57.34 | 1:57.26 | 2:57.10 | 3:57.12 | 4:57.03 | 5:56.31 | 6:55.07 | 7:53.43 |
| 6th | 2 | Grant Hackett | Australia | 57.34 | 1:57.21 | 2:56.95 | 3:57.00 | 4:56.96 | 5:57.10 | 6:57.44 | 7:55.39 |
| 7th | 6 | Ryan Cochrane | Canada | 57.84 | 1:57.26 | 2:56.64 | 3:56.34 | 4:56.15 | 5:56.99 | 6:57.69 | 7:56.56 |
| DSQ | 3 | Oussama Mellouli | Tunisia | 57.31 | 1:56.44 | 2:55.94 | 3:55.49 | 4:54.19 | 5:52.92 | 6:50.80 | 7:46.95 |

### Heats

| Rank | Heat : Lane | Name | Nationality | 200m | 400m | 600m | Time | Note |
| 1 | 5 : 4 | Craig Stevens | Australia | 1:56.32 | 3:54.72 | 5:54.41 | 7:50.72 | Q |
| 2 | 4 : 5 | Federico Colbertaldo | Italy | 1:56.76 | 3:55.28 | 5:53.63 | 7:50.77 | Q |
| 3 | 6 : 3 | Oussama Mellouli | Tunisia | 1:56.26 | 3:55.73 | 5:55.48 | 7:51.48 | Q |
| 4 | 6 : 2 | Ryan Cochrane | Canada | 1:57.40 | 3:56.87 | 5:56.18 | 7:51.55 | Q |
| 5 | 6 : 4 | Grant Hackett | Australia | 1:56.76 | 3:56.64 | 5:56.87 | 7:51.86 | Q |
| 6 | 5 : 5 | Przemysław Stańczyk | Poland | 1:56.17 | 3:54.88 | 5:54.65 | 7:52.40 | Q |
| 7 | 4 : 7 | Sergiy Fesenko | Ukraine | 1:57.56 | 3:56.92 | 5:55.94 | 7:52.64 | Q |
| 8 | 4 : 3 | Sébastien Rouault | France | 1:57.27 | 3:56.42 | 5:55.51 | 7:52.92 | Q |
| 9 | 5 : 6 | Peter Vanderkaay | USA | 1:56.49 | 3:55.99 | 5:55.49 | 7:54.37 |
| 10 | 5 : 2 | Erik Vendt | USA | 1:55.43 | 3:54.73 | 5:55.09 | 7:54.48 |
| 11 | 5 : 1 | Luka Turk | Slovenia | 1:56.21 | 3:55.84 | 5:56.84 | 7:54.58 |
| 12 | 6 : 6 | Nikita Lobintsev | Russia | 1:56.01 | 3:56.03 | 5:57.57 | 7:56.91 |
| 13 | 4 : 6 | Marcos Rivera Miranda | Spain | 1:58.56 | 3:59.40 | 5:59.62 | 7:57.14 |
| 14 | 6 : 7 | Mads Glæsner | Denmark | 1:56.53 | 3:57.38 | 5:59.35 | 7:59.43 |
| 15 | 4 : 1 | Dragoş Coman | Romania | 1:57.07 | 3:56.73 | 5:57.61 | 7:59.91 |
| 16 | 4 : 2 | Vitaly Romanovich | Russia | 1:57.42 | 3:59.62 | 6:01.58 | 7:59.94 |
| 17 | 4 : 4 | Christian Hein | Germany | 1:58.46 | 3:59.88 | 6:01.60 | 8:00.14 |
| 18 | 6 : 5 | Nicolas Rostoucher | France | 1:56.88 | 3:56.50 | 5:58.29 | 8:03.03 |
| 19 | 5 : 7 | Maciej Hreniak | Poland | 1:58.53 | 4:00.37 | 6:03.56 | 8:05.01 |
| 20 | 5 : 8 | David Brandl | Austria | 1:58.78 | 4:00.54 | 6:03.31 | 8:05.48 |
| 21 | 3 : 4 | Ricardo Monasterio | Venezuela | 1:59.84 | 4:02.69 | 6:06.39 | 8:05.81 |
| 22 | 3 : 3 | Fernando Costa | Portugal | 1:59.74 | 4:02.83 | 6:06.31 | 8:06.44 |
| 23 | 1 : 7 | Sun Yang | China | 2:01.36 | 4:05.14 | 6:09.07 | 8:08.12 |
| 24 | 3 : 7 | Ahmed Mathlouthi | Tunisia | 2:00.88 | 4:02.90 | 6:06.89 | 8:09.59 |
| 25 | 6 : 1 | Felipe Araújo | Brazil | 1:59.34 | 4:02.99 | 6:07.85 | 8:10.50 |
| 26 | 6 : 8 | Armando Negreiros | Brazil | 1:58.09 | 4:01.80 | 6:07.77 | 8:11.01 |
| 27 | 1 : 2 | Ren Chen | China | 2:02.16 | 4:07.12 | 6:11.22 | 8:12.32 |
| 28 | 3 : 2 | Robert Voss | New Zealand | 1:59.43 | 4:03.18 | 6:08.55 | 8:13.78 |
| 29 | 3 : 6 | Florian Janistyn | Austria | 1:59.28 | 4:02.25 | 6:08.52 | 8:14.26 |
| 30 | 3 : 1 | Caglar Gokbulut | Turkey | 2:04.25 | 4:09.33 | 6:15.23 | 8:19.08 |
| 31 | 4 : 8 | Shinya Taniguchi | Japan | 2:01.44 | 4:08.06 | 6:18.16 | 8:25.83 |
| 32 | 2 : 3 | Benjamin Guzman Blanco | Chile | 2:03.37 | 4:11.60 | 6:20.56 | 8:26.24 |
| 33 | 2 : 5 | Mario Montoya | Costa Rica | 2:03.46 | 4:11.70 | 6:20.45 | 8:27.47 | NR |
| 34 | 2 : 8 | Pál Joensen | Faroe Islands | 2:05.00 | 4:13.52 | 6:22.43 | 8:30.31 |
| 35 | 3 : 8 | Irakli Revishvili | Georgia | 2:06.43 | 4:14.72 | 6:23.95 | 8:31.52 |
| 36 | 2 : 4 | Kevin Soow Choy Yeap | Malaysia | 2:03.59 | 4:12.79 | 6:20.46 | 8:32.35 |
| 37 | 3 : 5 | Erwin Maldonado | Venezuela | 2:02.19 | 4:11.67 | 6:25.34 | 8:38.69 |
| 38 | 2 : 6 | Micky van der Vaart | Aruba | 2:03.10 | 4:12.91 | 6:25.25 | 8:39.17 |
| 39 | 1 : 4 | Neil Agius | Malta | 2:11.17 | 4:27.57 | 6:44.13 | 8:57.63 |
| 40 | 2 : 7 | Davor Trnovljakovic | Bosnia and Herzegovina | 2:07.86 | 4:25.91 | 6:45.41 | 9:01.70 |
| 41 | 1 : 5 | Heimanu Sichan | Tahiti | 2:11.61 | 4:29.77 | 6:50.87 | 9:09.79 |
| 42 | 2 : 1 | Timur Kartabaev | Kyrgyzstan | 2:14.75 | 4:39.79 | 7:04.84 | 9:27.31 |
| 43 | 1 : 3 | Cooper Graf | Northern Mariana Islands | 2:31.67 | 5:08.95 | 7:45.20 | 10:14.48 |
| 999 | 1 : 6 | Ibraihm Assah | Ghana | | | | DNS |
| 999 | 2 : 2 | Anas Abuyousuf | Qatar | | | | DNS |
| 999 | 5 : 3 | Andrew Hurd | Canada | | | | DNS |