The Primera División Uruguaya 2005 started on 5 March 2005 and ended on 12 July 2005.
The league was a single round-robin tournament and not relegation and promotion from Segunda División Uruguay. But along with Apertura 2005 of 2005–06 season, the whole schedule of 2005 would count in a final table, the bottom three would direct relegated. The winners qualified for 2006 Copa Libertadores.
Standings
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nacional | 17 | 12 | 5 | 0 | 39 | 16 | +23 | 41 | Championship tiebreaker |
| 2 | Defensor | 17 | 12 | 5 | 0 | 33 | 13 | +20 | 41 | |
| 3 | Peñarol | 17 | 10 | 5 | 2 | 28 | 19 | +9 | 35 | |
| 4 | Danubio | 17 | 8 | 4 | 5 | 23 | 16 | +7 | 28 | |
| 5 | Rocha | 17 | 6 | 7 | 4 | 27 | 21 | +6 | 25 | |
| 6 | Liverpool | 17 | 7 | 4 | 6 | 26 | 25 | +1 | 25 | |
| 7 | Rentistas | 17 | 6 | 6 | 5 | 30 | 25 | +5 | 24 | |
| 8 | Miramar Misiones | 17 | 7 | 2 | 8 | 33 | 29 | +4 | 23 | |
| 9 | Wanderers | 17 | 6 | 5 | 6 | 30 | 33 | −3 | 23 | |
| 10 | River Plate | 17 | 6 | 4 | 7 | 34 | 32 | +2 | 22 | |
| 11 | Cerrito | 17 | 5 | 6 | 6 | 21 | 19 | +2 | 21 | |
| 12 | Tacuarembó | 17 | 5 | 6 | 6 | 17 | 18 | −1 | 21 | |
| 13 | Fénix | 17 | 5 | 4 | 8 | 19 | 26 | −7 | 19 | |
| 14 | Paysandú | 17 | 3 | 5 | 9 | 23 | 34 | −11 | 14 | |
| 15 | Rampla Juniors | 17 | 3 | 5 | 9 | 19 | 31 | −12 | 14 | |
| 16 | Plaza Colonia | 17 | 3 | 5 | 9 | 8 | 27 | −19 | 14 | |
| 17 | Cerro | 17 | 3 | 4 | 10 | 20 | 30 | −10 | 13 | |
| 18 | Deportivo Colonia | 17 | 3 | 4 | 10 | 15 | 31 | −16 | 13 |
Source: RSSSF
Championship tiebreaker
Defensor Sporting refused to play the tiebreaker match due to Nacional winning their last match by a contested penalty in 7th minute of injury time. Nacional was awarded the championship on 6 July 2005.
| Primera División 2005 champion |
|---|
| Nacional 40th title |
Topscorers
| Pos | Name | Team | Goals |
|---|---|---|---|
| 1 | Pablo Granoche | Miramar Misiones | 16 |
| 2 | Elías Ferreira | Rentistas | 14 |
| 3 | Sergio Blanco | Wanderers | 12 |
| 4 | Osvaldo Canobbio | River Plate | 11 |
| 5 | Martín Ligüera | Nacional | 10 |
| 6 | Sebastián Taborda | Defensor | 9 |
| 7 | José Pedro Cardozo | Rocha | 8 |
| Richard Porta | River Plate | 8 | |
| Ignacio Risso | Danubio | 8 | |
| Sebastián Abreu | Nacional | 8 | |
| Hugo Costela | Defensor | 8 | |
| Leonardo Medina | Liverpool | 8 |