| Tournament details | |
|---|---|
| Country | South Korea |
| Dates | 6 March – 8 May 2005 |
| Teams | 13 |
| Final positions | |
| Champions | Suwon Samsung Bluewings (5th title) |
| Runner-up | Ulsan Hyundai Horang-i |
| Tournament statistics | |
| Matches played | 78 |
| Goals scored | 163 (2.09 per match) |
| Top goal scorer(s) | Sandro Hiroshi (7 goals) |
The 2005 Korean League Cup, also known as the 2005 Samsung Hauzen Cup, was the 18th competition of the Korean League Cup. It was a League Cup, but was run like a league format in this year. All teams played each other once, playing 12 matches each.