The 2004 WPA World Nine-ball Championship was the 15th edition of the WPA World Championship for 9-Ball Pool. It took place from July 10 to 18, 2004 in the Taiwanese capital city Taipei. Filipino Alex Pagulayan won the championship with a 17–13 victory in the final against Taiwanese Chang Pei-Wei . Defending champion Thorsten Hohmann dropped out in the round of 32 against Kang Chin-ching from Chinese Taipei.