The 2005 Ladbrokes.com World Darts Championship was the 12th edition of the PDC World Darts Championship, and was held at the Circus Tavern, Purfleet taking place between 26 December 2004 and 3 January 2005.

Phil Taylor went on to clinch his 12th World Championship (10 in the PDC, 2 in the BDO) with a 7–4 final victory over Mark Dudbridge.

[1] The tournament format remained the same as the previous year, with a preliminary round featuring eight international players against eight qualifiers from the Professional Dart Players Association (PDPA) qualifying tournament.

The final between Taylor and Dudbridge looked for a long time as though it would be as close as the previous year's classic between Taylor and Kevin Painter.

Dudbridge led by 2 sets to 1, and having fallen 2–3 behind managed to level again.