2005–06 Argentine Primera División
The 2005–06 Argentine Primera División was the 115th season of top-flight football in Argentina. The season ran from August 5, 2005 to May 14, 2006.
Boca Juniors won both, Apertura and Clausura championships totalising 28 league titles to date, while Instituto, Tiro Federal and Olimpo were relegated.Top scorers
Top scorers
Relegation
Promotion playoff
!colspan="5"|Relegation/promotion playoff 1
!colspan="5"|Relegation/promotion playoff 2