The 2019 William Hill World Darts Championship was the 26th World Championship organised by the Professional Darts Corporation since it separated from the British Darts Organisation. The event took place at Alexandra Palace in London from 13 December 2018 to 1 January 2019.

The PDC World Darts Championship, known for sponsorship purposes as the Paddy Power World Darts Championship, organised by the Professional Darts Corporation (PDC), is a World Professional Darts Championship held annually in the sport of darts. The PDC world championship begins in December and ends in January and is held at Alexandra Palace in London and has been held there since 2008. It is the most prestigious of the PDC's tournaments, with the winner receiving the Sid Waddell Trophy, named in honour of the darts commentator Sid Waddell, who died in 2012. Along with the Premier League Darts and World Matchplay, it is considered part of the Triple Crown.