The inaugural 2005–06 A-League season began on 26 August 2005 and ended on 5 March 2006.

The inaugural 2005 A-League Pre-Season Challenge Cup began on 22 July 2005 and ended on 20 August 2005.

Sydney FC entered as winners of the 2005 Australian Club World Championship Qualifying Tournament.

Sydney FC qualified as winners of the 2005 OFC Club Championship.

The following is a list of friendlies played by the women's senior national team in 2005–06.