| Tournament Name: | 1989 StormSeal UK Championship |
| Venue: | Preston Guild Hall |
| Location: | Preston |
| Country: | England |
| Organisation: | WPBSA |
| Format: | Ranking event |
| Total Prize Fund: | £420,000 |
| Winners Share: | £100,000 |
| Highest Break: | (141) |
| Score: | 16–12 |
| Previous: | 1988 |
| Next: | 1990 |
The 1989 UK Championship (officially the 1989 StormSeal UK Championship) was a professional ranking snooker tournament that took place between 17 November and 3 December 1989 at the Guild Hall in Preston, England. StormSeal became the new sponsor of the UK Championship. The televised stages were shown live on the BBC from 25 November to the final.
Defending champion Doug Mountjoy lost in the last 64 against rookie player Joe O'Boye. The 1988 runner-up Stephen Hendry won the first of his five UK titles by defeating six-times champion Steve Davis 16–12 in the final, taking Hendry on course for the number one spot in the world snooker rankings. The highest break of the tournament was a 141 made by Stephen Hendry.
The breakdown of prize money for this year is shown below:
| Final: Best of 31 frames. Referee: Len Ganley The Guild Hall, Preston, England, 2 and 3 December 1989. | |||
| Stephen Hendry | 16–12 | Steve Davis | |
| First session: 71–52, 75–1, 95–20 (54), 67–50 (Davis 50), 24–73, 18–71 (60), 41–65 Second session: 89–30 (55), 117–6 (88), 89–19 (64), 2–96 (59), 41–69, 105–0 (75), 92–13 (91) Third session: 87–39, 17–75 (62), 37–95, 58–61, 77–33 (77), 29–80, 14–62, Fourth session: 123–13 (123), 112–10 (112), 70–16, 0–138 (138), 40–94, 97–22, 94–5 (66) | |||
| 123 | Highest break | 138 | |
| 2 | Century breaks | 1 | |
| 10 | 50+ breaks | 5 | |