The 2005–06 Adelaide United FC season was the club's second season since its establishment in 2003. The club participated in the A-League for the first time after the National Soccer League was replaced. Continuing their good form from the final season of the NSL, Adelaide United finished as Premiers in the inaugural season of the Hyundai A-League. The Reds were bundled out of the finals race in straight sets losing to Sydney FC in the two leg semi final and then Central Coast Mariners 1–0 in the preliminary final at Hindmarsh.

Players

Transfers

Transfers in

Transfers out

Loans out

Squad statistics

Appearances and goals

Disciplinary record

Pre-season

Friendlies

Pre-Season Challenge Cup

Competitions

A-League

League table

Matches

Finals Series

OFC Club Championship

Qualification zone

Awards