2005 Categoría Primera A season

This season included the new team Boyacá Chicó; changing its name from Chico FC, they also moved to Tunja from Bogotá.

The season began on February 12, and concluded on June 26.

The winners of each group face in the finals to define a champion.

The season began on July 10 and finished December 18.

The winners of each group face on in the finals to define a champion.