 | |
| Host city | Berlin, Germany |
|---|---|
| Nations | 202 |
| Athletes | 2101 |
| Events | 47 |
| Dates | 15–23 August 2009 |
| Opened by | President Horst Köhler |
| Closed by | IAAF President Lamine Diack |
| Main venue | Olympiastadion |
The 12th IAAF World Championships in Athletics (German: Leichtathletik-Weltmeisterschaften 2009) were held in Berlin, Germany from 15 to 23 August 2009. The majority of events took place in the Olympiastadion, while the marathon and racewalking events started and finished at the Brandenburg Gate.