| Tournament information | |
|---|---|
| Dates | 1–8 February 2004 |
| Venue | Wembley Conference Centre |
| City | London |
| Country | England |
| Organisation | World Professional Billiards and Snooker Association |
| Format | Non-ranking event |
| Total prize fund | £400,000 |
| Winner's share | £100,000 |
| Highest break |  Ronnie O'Sullivan (ENG) (138) |
| Final | |
| Champion | Paul Hunter (ENG) |
| Runner-up | Ronnie O'Sullivan (ENG) |
| Score | 10–9 |
← 2003 2005 → | |
The 2004 Masters was a professional non-ranking snooker tournament held in February 2004. It was the 30th staging of the Masters tournament, one of three Triple Crown events on the Snooker Tour, the eighth of fifteen World Professional Billiards and Snooker Association (WPBSA) events in the 2003/2004 season, and was held at the Wembley Conference Centre in London, United Kingdom from 1 to 8 February 2004. The tournament was broadcast in the United Kingdom by the BBC.
Paul Hunter won the tournament, defeating 1995 winner and world number three Ronnie O'Sullivan 10–9, claiming the third Masters title of his career in four years. Hunter joined Cliff Thorburn, Stephen Hendry and Steve Davis as the fourth player to win the Masters three or more times. In the semi-finals, Hunter defeated John Higgins 6–3 and O'Sullivan beat Jimmy White 6–4. O'Sullivan compiled a 138 break, the highest of the tournament, in the second frame of his semi-final match against White.