2005 Primera División of Chile

The 2005 Primera División de Chile season was both 77th and 78th season of top-flight football in Chile.

Torneo Apertura
The 2005 Torneo Apertura was the season's first tournament. Cobreloa was the defending champions.

Aggregate table
Repechaje

Torneo Clausura
The 2005 Torneo Clausura was the season's second tournament. Unión Española was the defending champion after beating Coquimbo Unido in the Torneo Apertura final.

Aggregate table
Repechaje