| 2005 | |
 2005 FIDE World Cup winner Levon Aronian | |
| Tournament information | |
|---|---|
| Sport | Chess |
| Location | Khanty-Mansiysk, Russia |
| Dates | 27 November 2005–17 December 2005 |
| Administrator | FIDE |
Tournament format(s) | Single-elimination tournament |
| Host(s) | Chess Federation of Russia |
| Final positions | |
| Champion |  Levon Aronian |
| Runner-up |  Ruslan Ponomariov |
The Chess World Cup 2005 served as a qualification tournament for the FIDE World Chess Championship 2007. It was held as a 128-player tournament from 27 November to 17 December 2005 in Khanty-Mansiysk, Russia.
The top ten finishers qualified for the candidates matches of the World Chess Championship 2007. One of them (Étienne Bacrot) had already qualified for the candidates matches via rating, freeing the place for the eleventh player at the World Cup (Vladimir Malakhov).
The World Cup was won by Armenian grandmaster Levon Aronian.