The 1981 Embassy World Darts Championship was the fourth year that the British Darts Organisation had staged a world championship. The field was expanded from 24 to 32 players, the format which would remain for many years. For the third successive year the tournament was staged at Jollees Cabaret Club in Stoke-on-Trent. Eric Bristow was back to defend his title and would face John Lowe the champion of two years previously in the final. The final was the best of nine sets, but there was a break scheduled after three sets where the third-fourth place play-off match would be held.