| Tournament information | |
|---|---|
| Dates | 14–20 December 1998 |
| Venue | National Basketball Arena |
| City | Tallaght |
| Country | Republic of Ireland |
| Organisation | WPBSA |
| Format | Ranking event |
| Total prize fund | £305,000 |
| Winner's share | £50,000 |
| Highest break |  Mark Williams (WAL) (139) |
| Final | |
| Champion | Mark Williams (WAL) |
| Runner-up |  Alan McManus (SCO) |
| Score | 9–4 |
← 1997 2001 → | |
The 1998 Irish Open was a professional ranking snooker tournament, held from 14 to 20 December 1998 at the National Basketball Arena, Tallaght, Republic of Ireland, of which only one edition was held. Mark Williams won the tournament by defeating Alan McManus 9–4 in the final.