2004–05 in Argentine football
The 2004-05 Argentine First Division season saw Américo Gallego's Newell's Old Boys win the Apertura title after a fierce battle against Vélez Sársfield for the supremacy. Vélez soon got over the disappointment after winning the Clausura with Banfield finishing second despite playing most of the tournament with a young squad because they were also competing the Copa Libertadores de América.
Huracán de Tres Arroyos and Almagro were relegated to the Nacional B after lackluster performance while Argentinos Juniors and Instituto played the promotion against Atlético de Rafaela and Huracán, respectively. Both won their series and were able to stay in the top category of the Argentine Football.
Torneo Apertura
| Team | |||||||||
| 1 | Newell's Old Boys | 36 | 19 | 10 | 6 | 3 | 22 | 11 | 11 |
| 2 | Vélez Sársfield | 34 | 19 | 10 | 4 | 5 | 21 | 16 | 5 |
| 3 | River Plate | 33 | 19 | 9 | 6 | 4 | 28 | 19 | 9 |
| 4 | Estudiantes La Plata | 30 | 19 | 7 | 9 | 3 | 22 | 14 | 8 |
| 5 | San Lorenzo | 30 | 19 | 8 | 6 | 5 | 29 | 22 | 7 |
| 6 | Rosario Central | 30 | 19 | 8 | 6 | 5 | 19 | 15 | 4 |
| 7 | Colón de Santa Fe | 27 | 19 | 7 | 6 | 6 | 24 | 22 | 2 |
| 8 | Boca Juniors | 26 | 19 | 7 | 5 | 7 | 22 | 16 | 6 |
| 9 | Banfield | 26 | 19 | 6 | 8 | 5 | 24 | 22 | 2 |
| 10 | Racing Club | 26 | 19 | 8 | 2 | 9 | 22 | 21 | 1 |
| 11 | Lanús | 26 | 19 | 6 | 8 | 5 | 25 | 26 | –1 |
| 12 | Gimnasia de La Plata | 25 | 19 | 6 | 7 | 6 | 16 | 23 | –7 |
| 13 | Arsenal de Sarandí | 24 | 19 | 5 | 9 | 5 | 17 | 16 | 1 |
| 14 | Quilmes | 24 | 19 | 6 | 6 | 7 | 14 | 18 | –4 |
| 15 | Independiente | 23 | 19 | 6 | 5 | 8 | 23 | 26 | –7 |
| 16 | Argentinos Juniors | 22 | 19 | 6 | 4 | 9 | 17 | 17 | 0 |
| 17 | Almagro | 22 | 19 | 4 | 10 | 5 | 15 | 18 | –3 |
| 18 | Olimpo de Bahía Blanca | 17 | 19 | 4 | 5 | 10 | 21 | 29 | –8 |
| 19 | Instituto | 14 | 19 | 2 | 8 | 9 | 16 | 30 | –14 |
| 20 | Huracán de Tres Arroyos | 12 | 19 | 2 | 6 | 11 | 19 | 34 | –15 |
Top Scorers
| Position | Player | Team | Goals |
| 1 | Lisandro López | Racing Club | 12 |
| 2 | Jeremías Caggiano | Huracán de Tres Arroyos | 8 |
| 2 | Osvaldo Miranda | Almagro | 8 |
| 2 | Rolando Zárate | Vélez Sársfield | 8 |
| 3 | Nicolás Frutos | Gimnasia de La Plata | 7 |
| 3 | Claudio Graf | Lanús | 7 |
| 3 | Rodrigo Palacio | Banfield | 7 |
| 3 | Emanuel Villa | Rosario Central | 7 |
| 4 | Jairo Castillo | Independiente | 6 |
| 4 | Diego Galván | Olimpo de Bahía Blanca | 6 |
| 4 | Ezequiel Lavezzi | San Lorenzo | 6 |
| 4 | Martín Palermo | Boca Juniors | 6 |
| 4 | Hernán Peirone | San Lorenzo | 6 |
Relegation
Torneo Clausura">Clausura">Torneo Clausura (''"Closing"'' Tournament)
Top Scorers
Relegation
"Promoción" playoff
wins 4-2 and remains in the Argentine First DivisionInstituto wins 3-1 and remains in the Argentine First Division
Lower Leagues
| Level | Tournament | Champion |
| 2nd | Primera B Nacional Apertura Primera B Nacional Clausura | Tiro Federal Gimnasia de Jujuy |
| 3rd | Primera B Metropolitana | Tigre |
| 3rd | Torneo Argentino A | Ben Hur |
| 4th | Primera C Metropolitana | Comunicaciones |
| 5th | Primera D Metropolitana | Club Atlético Fénix |
Clubs in international competitions
National team
This section covers Argentina's games from August 1, 2004 to July 31, 2005.For the Olympic Games results, please see here. Those results are not tallied here because the team is made of Under–23 players, not the full squad.