The 2005 Holland Series was a series of baseball games held from September 24, 2005 to October 1, 2005 between the two Dutch play-off winners DOOR Neptunus and Mr. Cocker HCAW. The first team to have won three games in the best-of-five-games series became Dutch champions.
| Game | Score | Date |
|---|---|---|
| 1 | DOOR Neptunus 0, @ Mr. Cocker HCAW 1 | September 24 |
| 2 | Mr. Cocker HCAW 0, @ DOOR Neptunus 7 | September 25 |
| 3 | DOOR Neptunus 5, @ Mr. Cocker HCAW 1 | September 29 |
| 4 | Mr. Cocker HCAW 0, @ DOOR Neptunus 3 | October 1 |