| Samsung Hauzen Cup | |
| Year: | 2005 |
| Country: | South Korea |
| Dates: | 6 March – 8 May 2005 |
| Num Teams: | 13 |
| Champions: | Suwon Samsung Bluewings |
| Count: | 5 |
| Runner-Up: | Ulsan Hyundai Horang-i |
| Matches: | 78 |
| Goals: | 163 |
| Top Goal Scorer: | Sandro Hiroshi (7 goals) |
| Prevseason: | 2004 |
| Nextseason: | 2006 |
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.
| Award | Player | Team | Points | |
|---|---|---|---|---|
| Top goalscorer |  Sandro Hiroshi | Daegu FC | 7 goals | |
| Top assist provider | Paulo César | Jeonbuk Hyundai Motors | 5 assists |