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

| Rank_ | Heat_Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 26 | 6 : 8 | Armando Negreiros | Brazil | 8:11.01 |
| 27 | 1 : 2 | Ren Chen | China | 8:12.32 |
| 28 | 3 : 2 | Robert Voss | New Zealand | 8:13.78 |
| 29 | 3 : 6 | Florian Janistyn | Austria | 8:14.26 |
| 30 | 3 : 1 | Caglar Gokbulut | Turkey | 8:19.08 |
| 31 | 4 : 8 | Shinya Taniguchi | Japan | 8:25.83 |
| 32 | 2 : 3 | Benjamin Guzman Blanco | Chile | 8:26.24 |
| 33 | 2 : 5 | Mario Montoya | Costa Rica | 8:27.47 |
| 34 | 2 : 8 | Pál Joensen | Faroe Islands | 8:30.31 |
| 35 | 3 : 8 | Irakli Revishvili | Georgia | 8:31.52 |
| 36 | 2 : 4 | Kevin Soow Choy Yeap | Malaysia | 8:32.35 |
| 37 | 3 : 5 | Erwin Maldonado | Venezuela | 8:38.69 |