The 2004 Stan James World Matchplay was held between 25–31 July 2004 at the Winter Gardens, Blackpool, and was won for the fifth year in a row by Phil Taylor.

The prize fund was £100,000.^[1]

The tournament featured sixteen seeds.^[2]

Players in bold denote match winners.^[3][4][5]

	First round (best of 19 legs) 25–27 July					Second round (best of 25 legs) 27–28 July					Quarter-finals (best of 31 legs) 29 July					Semi-finals (best of 33 legs) 30 July					Final (best of 35 legs) 31 July
	1	John Part 90.54	10
		Colin Monk 59.96	0
						1	John Part 86.85	17
						16	Bob Anderson 85.25	15
	16	Bob Anderson 87.18	10
		Robbie Green 89.86	7
											1	John Part 91.61	16
											9	Andy Jenkins 84.13	14
	8	Dennis Smith 90.34	10
		Keith Deller 79.99	4
						8	Dennis Smith 84.41	15
						9	Andy Jenkins 84.32	17
	9	Andy Jenkins 94.46	10
		John Lowe 88.83	6
																1	John Part 92.42	8
																4	Phil Taylor 98.42	17
	5	Colin Lloyd 83.93	10
		Dave Smith 80.28	6
						5	Colin Lloyd 89.38	13
						12	Denis Ovens 87.95	7
	12	Denis Ovens 92.60	10
		Mark Walsh 89.89	5
											5	Colin Lloyd 96.05	10
											4	Phil Taylor 105.56	16
	4	Phil Taylor 109.42	10
		Alex Roy 86.45	1
						4	Phil Taylor 96.07	13
						13	Steve Beaton 85.35	4
	13	Steve Beaton 86.84	10
		Paul Williams 80.01	7
																					4	Phil Taylor 100.12	18
																						Mark Dudbridge 89.24	8
	2	Roland Scholten 81.17	10
		Richie Burnett 83.08	7
						2	Roland Scholten 87.57	16
							Jamie Harvey 86.64	18
	15	Dave Askew 83.05	7
		Jamie Harvey 80.06	10
												Jamie Harvey 83.89	4
											10	Ronnie Baxter 87.97	16
	7	Kevin Painter 88.63	12
		Lionel Sams 83.14	10
						7	Kevin Painter 89.38	17
						10	Ronnie Baxter 92.16	19
	10	Ronnie Baxter 91.65	10
		Peter Evison 79.18	0
																10	Ronnie Baxter 94.31	13
																	Mark Dudbridge 95.91	17
	6	Wayne Mardle 92.87	5
		Mark Dudbridge 94.84	10
							Mark Dudbridge 87.61	15
						11	Alan Warriner 84.90	13
	11	Alan Warriner 88.11	10
		Simon Whatley 79.78	3
												Mark Dudbridge 89.40	16
											3	Peter Manley 88.20	9
	3	Peter Manley 87.10	10
		Dave Jowett 77.53	4
						3	Peter Manley 83.64	13
						14	Dennis Priestley 80.84	9
	14	Dennis Priestley 83.44	10
		Alan Caves 81.79	5