Swimming at the 2009 World Aquatics Championships – Men's 1500 metre freestyle
The heats for the men's 1500 m freestyle race at the 2009 World Championships took place on the morning of 1 August, with the final in the evening session of 2 August at the Foro Italico in Rome, Italy.
Records
Prior to the competition, the existing world and championship record were as follows.| Name | Nation | Time | Location | Date | |
| World record Championship record | Grant Hackett | 14:34.56 | Fukuoka | July 29, 2001 |