| Tournament information | |
|---|---|
| Dates | 17 February – 3 March 1985 |
| Venue | Assembly Rooms |
| City | Derby |
| Country | England |
| Organisation | WPBSA |
| Format | Ranking event |
| Total prize fund | £250,000 |
| Winner's share | £50,000 |
| Highest break |  Alex Higgins (NIR) (142) |
| Final | |
| Champion |  Silvino Francisco (RSA) |
| Runner-up |  Kirk Stevens (CAN) |
| Score | 12–9 |
← 1984 1986 → | |
The 1985 British Open (officially the 1985 Dulux British Open) was a professional ranking snooker tournament, that was held from 17 February to 3 March 1985 with television coverage on ITV beginning on 22 February from the Assembly Rooms in Derby, England. It was the first edition of the British Open, having been rebranded from the International Open the previous year. It was the fifth ranking event of the 1984–85 snooker season, preceding the 1985 World Snooker Championship.
In the best-of-23-frames final, South African player Silvino Francisco defeated Canadian Kirk Stevens 12–9. It was the first major professional snooker tournament without a British player in the final. The event featured a total prize fund of £250,000 with the winner receiving £50,000. The highest break of the event was made by Alex Higgins, who compiled a 142 in his last-16 match against Cliff Thorburn.