| WPA World 9-ball Championship 1998 | |
| Location: | Taipei City, Taiwan |
| Start Date: | November 11, 1998 |
| End Date: | November 15, 1998 |
| Sport: | 9-ball |
| Tournament Format: | Round robin / Single Elimination |
| Host: | WPA World Nine-ball Championship |
| Runner-Up1: |  Johnny Archer |
| Participants: | 64 |
| Champion: |  Kunihiko Takahashi |
| Previous: | 1997 |
| Next: | 1999 |
The 1998 WPA World Nine-ball Championship was a professional pool championship that took place in 1998 in Taipei City, Taiwan. The event was won by Kunihiko Takahashi who defeated defending champion Johnny Archer in the final.[1]
The following is the results from the quarter-finals. Players competing had progressed through the earlier knockout round. Players in bold denote match winners. Matches were race-to-13.