1998–99 Argentine Primera División
| Season | 1998–99 |
|---|---|
| Dates | August 7, 1998 – June 21, 1999 |
| Champions |
|
| 2000 Copa Libertadores | Boca Juniors River Plate |
| 1999 Copa Conmebol | Gimnasia y Esg LP Rosario Central |
| Matches played | 380 |
← 1997–98 | |
The 1998–99 Argentine Primera División was the 108th season of top-flight football in Argentina. The season ran from August 7, 1998, to June 21, 1999. Both main clubs from Córdoba, Talleres (champion of 1997–98 Primera B Nacional) and Belgrano (winner of "Torneo Reducido", after beating Aldosivi in a two-legged series) were promoted from Primera B Nacional.
Boca Juniors won both, Apertura and Clausura championships (a total of 24 league titles to date), while Platense and Huracán were relegated with the worst points averages.