The 2005 season of 1. deild karla was the 51st season of second-tier football in Iceland.
Standings edit
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Breiðablik | 18 | 13 | 5 | 0 | 32 | 13 | +19 | 44 | Promoted to 2006 Úrvalsdeild |
| 2 | Víkingur R. | 18 | 10 | 7 | 1 | 41 | 9 | +32 | 37 | |
| 3 | KA | 18 | 10 | 4 | 4 | 40 | 20 | +20 | 34 | |
| 4 | Fjölnir | 18 | 7 | 1 | 10 | 29 | 34 | −5 | 22 | |
| 5 | Víkingur Ó. | 18 | 6 | 4 | 8 | 15 | 30 | −15 | 22 | |
| 6 | Þór A. | 18 | 6 | 3 | 9 | 25 | 34 | −9 | 21 | |
| 7 | HK | 18 | 4 | 8 | 6 | 18 | 21 | −3 | 20 | |
| 8 | Haukar | 18 | 4 | 5 | 9 | 23 | 33 | −10 | 17 | |
| 9 | Völsungur | 18 | 4 | 4 | 10 | 17 | 25 | −8 | 16 | Relegated to 2006 2. deild |
| 10 | KS | 18 | 2 | 7 | 9 | 14 | 35 | −21 | 13 |
Source: rsssf.com
