2005 WPA World Nine-ball Championship
| Tournament information | |
|---|---|
| Sport | 9-ball | 
| Location | Kaohsiung, Taiwan | 
| Dates | July 2, 2005–July 10, 2005 | 
Tournament format(s)  | Round robin / Single Elimination | 
| Host(s) | WPA World Nine-ball Championship | 
| Participants | 128 | 
| Final positions | |
| Champion | Wu Chia-ching | 
| Runner-up | Kuo Po-Cheng | 
The 2005 WPA World Nine-ball Championship was the 16th edition of the WPA World Championship for 9-Ball Pool. It took place from July 2 to 10, 2005 in the Taiwanese city, Kaohsiung.
Taiwanese Wu Chia-ching won the championship with a 17–16 victory in the final against compatriot Kuo Po-Cheng. Defending champion Alex Pagulayan was eliminated by Vilmos Földes in the round of 32.