| Tournament Name: | Lakeside World Darts Championship |
| Dates: | 1–9 January 2005 |
| Venue: | Lakeside Country Club |
| Location: | Frimley Green, Surrey |
| Country: | England, United Kingdom |
| Organisation: | BDO |
| Format: | Sets Finals: best of 11 (men's) best of 3 (women's) |
| Prize Fund: | £201,000 |
| Winners Share: | £50,000 |
| Winner: | Raymond van Barneveld |
| Prev: | 2004 |
| Next: | 2006 |
The 2005 Lakeside World Professional Darts Championship was held from 1–9 January 2005 at the Lakeside Country Club in Frimley Green, Surrey. Raymond van Barneveld lifted the title for a fourth time, defeating England captain Martin Adams 6–2 in the final. The defending champion Andy Fordham suffered a first round loss to Vincent van der Voort. The women's event saw Trina Gulliver win her fifth successive title defeating Francis Hoenselaar 2–0 in a repeat the last year's final.
Men
The prize money was £199,000 for the men's event and £10,000 for the women's event.
Men's Champion: £50,000
Runner-Up: £25,000
Semi-Finalists (2): £11,000
Quarter-Finalists (4): £6,000
Last 16 (8): £4,250
Last 32 (16): £2,750
There was also a shared 9 Dart Checkout prize of £52,000, along with a High Checkout prize of £2,000 per event.
| Tournament Name: | Embassy World Darts Championship |
| Dates: | 1–9 January 2005 |
| Venue: | Lakeside Country Club |
| Location: | Frimley Green, Surrey |
| Country: | England, United Kingdom |
| Organisation: | BDO |
| Format: | Sets Finals: best of 3 (women's) |
| Prize Fund: | £10,000 |
| Winners Share: | £4,000 |
| Winner: | Trina Gulliver |
| Prev: | 2004 |
| Next: | 2006 |
Women
The prize money was £10,000 for the women's event.
Women's Champion: £4,000
Runner-Up: £2,000
Semi-Finalists (2): £1,000
Quarter-Finalists (4): £500
Women's bracket:[1]