1984 Argentine Primera División Knockout stages Knockout stages

| Home_1st_leg | Home_2nd_leg | _1st_Leg | _2nd_leg | Aggregate_ |
|---|---|---|---|---|
| Belgrano | Atlético Tucumán | 2-0 | 0-0 | 2-0 |
| Racing de Córdoba | San Lorenzo | 1-1 | 1-3 | 2-4 |
| Estudiantes La Plata | Talleres | 0-1 | 1-1 | 1-2 |
| Rosario Central | Independiente | 1-1 | 0-1 | 1-2 |
| Instituto | River Plate | 0-2 | 0-0 | 0-2 |
| Ferro Carril Oeste | Huracán | 1-0 | 0-1 | 1-1 (7-6 p.k.) |
| Olimpo | Newell`s Old Boys | 0-0 | 1-1 | 1-1 (6-7 p.k.) |
| Argentinos Juniors | Gimnasia de Mendoza | 3-2 | 2-1 | 5-3 |