The 2011–12 season will be Sydney FC's seventh consecutive season in the Hyundai A-League since its foundation season in 2005–2006. The club will not compete in the 2012 AFC Champions League after failing to qualify during the previous season. The 2011–12 season also marks a new chapter in the history of the A-League, with new kit manufacturers for all teams. Reebok had held the rights to jersey manufacturing rights for the first six A-League seasons. Sydney FC announced Adidas as their new kit maker.

Players included in a Sydney FC squad in the 2010–11 season Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

†The Round 9 fixture against the Brisbane Roar was moved from the Sydney Football Stadium to Jubilee Oval due to an Eminem concert being held at the Sydney Football Stadium on the same day

†The Round 10, regional fixture against Perth Glory was postponed until further notice, due to the Perth squad unable to leave Perth Airport due to bad weather.

Correct as of Round 14

†The Round 9 fixture against the Brisbane Roar was moved from the Sydney Football Stadium to Jubilee Oval due to an Eminem concert being held at the Sydney Football Stadium on the same day .

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