The 2005 Denmark Open in badminton was held in Aarhus, Denmark, from October 18 to October 23, 2005.
Venue
- Aarhus Atletion, The Arena
Results
Men's singles
| Quarterfinals | Semifinals | Finals | ||||||||||||||||||
 Eric Pang
| 6 | 15 | 5 | |||||||||||||||||
 Niels Christian Kaldau
| 15 | 11 | 15 | |||||||||||||||||
| Niels Christian Kaldau
| 5 | 2 | ||||||||||||||||||
 Muhd Hafiz Hashim
| 15 | 15 | ||||||||||||||||||
| Muhd Hafiz Hashim
| 11 | 15 | 15 | |||||||||||||||||
 Chetan Anand
| 15 | 10 | 9 | |||||||||||||||||
| Muhd Hafiz Hashim
| 14 | 8 | ||||||||||||||||||
| Lee Chong Wei
| 17 | 15 | ||||||||||||||||||
| Wong Choong Hann
| 15 | 3 | 15 | |||||||||||||||||
 Chen Jin
| 13 | 15 | 13 | |||||||||||||||||
| Wong Choong Hann
| 14 | 4 | ||||||||||||||||||
| Lee Chong Wei
| 17 | 15 | ||||||||||||||||||
| Dicky Palyama
| 12 | 0 | ||||||||||||||||||
| Lee Chong Wei
| 15 | 15 | ||||||||||||||||||
Others
| Category | Winners | Runners-up | Score |
|---|---|---|---|
| Women's singles |  Pi Hongyan
|
 Xu Huaiwen
|
7–11, 11–4, 11–5 |
| Men's doubles | Chan Chong Ming & Koo Kien Keat
|
Lars Paaske & Jonas Rasmussen
|
15–6, 15–7 |
| Women's doubles |  Kumiko Ogura & Reiko Shiota
|
 Gail Emms & Donna Kellogg
|
15–6, 15–9 |
| Mixed doubles | Thomas Laybourn & Kamilla Rytter Juhl
|
Lars Paaske & Helle Nielsen
|
15–8, 15–9 |