| 2015 William Hill World Darts Championship | |||
|---|---|---|---|
| Tournament information | |||
| Dates | 18 December 2014 – 4 January 2015 | ||
| Venue | Alexandra Palace | ||
| Location | London | ||
| Country |  England | ||
| Organisation(s) | PDC | ||
| Format | Legs (preliminaries) Sets (from Round 1) Final – best of 13 | ||
| Prize fund | £1,250,000 | ||
| Winner's share | £250,000 | ||
| Nine-dart finish | Adrian Lewis
(third round) | ||
| High checkout | |||
| Champion(s) | |||
 Gary Anderson | |||
| |||
The 2015 William Hill World Darts Championship was the 22nd World Championship organised by the Professional Darts Corporation since it separated from the British Darts Organisation. The event was held at the Alexandra Palace, London between 18 December 2014 and 4 January 2015.
Michael van Gerwen was the defending champion, having won his first World Championship title in 2014, but he lost 6–3 to Gary Anderson in the semi-finals. Anderson won the title by beating 16-time World Champion Phil Taylor 7–6 in the final. Taylor became the first player in PDC World Championship history to reach the PDC World Championship final, achieve a tournament 3-dart average of over 100, and yet not win the title.
Adrian Lewis threw the event's only nine-dart finish in his third round match with Raymond van Barneveld. John Michael and Boris Koltsov became the first players from Greece and Russia respectively to play in the first round of a PDC World Championship. Cristo Reyes became the first Spanish player to reach the last 16 in the history of the event.