| Tournament information | |
|---|---|
| Dates | 18–30 April 1977 |
| Venue | Crucible Theatre |
| City | Sheffield |
| Country | England |
| Organisation | WPBSA |
| Format | Ranking event |
| Total prize fund | £17,000 |
| Winner's share | £6,000 |
| Highest break |  John Spencer (ENG) (135) |
| Final | |
| Champion | John Spencer (ENG) |
| Runner-up |  Cliff Thorburn (CAN) |
| Score | 25–21 |
← 1976 1978 → | |
The 1977 World Snooker Championship is a professional snooker tournament that took place from 18 to 30 April 1977 at the Crucible Theatre in Sheffield. John Spencer won his third World Snooker Championship title by defeating Cliff Thorburn by 25 frames to 21 in the final. It was the first time the championship was held at the Crucible, which has remained as the venue for the Championship. The tournament was sponsored by cigarette manufacturer Embassy.
Qualifying matches took place from 28 March to 7 April 1977 at Hounslow Civic Centre and Fisher's Snooker Centre, Acton, to select eight qualifiers to play against the eight top-seeded players from the 1976/1977 snooker world rankings in the main tournament. Ray Reardon, who had won the annual championship each year from 1973 to 1976, was defeated 6–13 by Spencer in the quarter-finals. There were six century breaks at the championship; Spencer scored 135, the tournament's highest break, in the sixth frame of his semi-final match against John Pulman. Spencer was the first player to win the championship using a two-piece cue. As champion, he received £6,000 from the prize fund of £17,000. The World Championship was the only ranking event of the 1976–77 snooker season.