Swimming at the 2007 World Aquatics Championships – Men's 100 metre freestyle Heats Heats

| Rank_ | Heat | Lane | Name_ | Nationality |
|---|---|---|---|---|
| 50 | 17 | 6 | Octavian Guţu | Romania |
| 51 | 17 | 7 | Marcus Piehl | Sweden |
| 52 | 16 | 4 | Ryan Pini | Papua New Guinea |
| 53 | 15 | 1 | Mario Delač | Croatia |
| 54 | 16 | 1 | Norbert Trandafir | Romania |
| 55 | 16 | 2 | Shai Liwnat | Israel |
| 56 | 16 | 8 | Romans Miloslavskis | Latvia |
| 57 | 16 | 5 | Octavio Alesi | Venezuela |
| 58 | 15 | 6 | Mark Herring | New Zealand |
| 59 | 15 | 3 | Martin Kutscher Belgeri | Uruguay |
| 60 | 15 | 2 | Vitaly Khan | Kazakhstan |
| 61 | 13 | 6 | Virdhawal Khade | India |
| 62 | 12 | 4 | Igor Čerenšek | Croatia |
| 62 | 15 | 5 | Gabriel Melconian | Uruguay |
| 64 | 14 | 6 | Namgyun Lim | South Korea |
| 65 | 14 | 1 | Jacinto Ayala | Dominican Republic |