Sydney FC

It competes in the country's premier men's competition, A-League Men, under licence from Australian Professional Leagues (APL). The club was founded in 2004 and entered the A-League as one of the eight original teams for the inaugural 2005–06 season.

Sydney is the most successful association football club in Australian history, having won five Championships and four Premierships in the A-League, as well as one FFA Cup and the Oceania Champions League in 2005, prior to Australia joining the Asian Football Confederation. The club has become a dominant force and consistent performer in recent times within the top-flight, a surge led by managers Graham Arnold (2014–2018) and Steve Corica (2018–present). Since 2015, the club has achieved a top-two finish (thereby winning qualification for the Asian Champions League) in six out of seven seasons, appeared in five A-League Grand Finals and three FFA Cup Finals, and won seven major trophies.

Prior to the 2018–19 season, the club's home ground was Allianz Stadium in Moore Park. With that stadium now demolished, Sydney plays home matches at Jubilee Oval and Leichhardt Oval; the club plans to return to the newly built Allianz Stadium in Moore Park in 2022. The club is currently building a new training and administration facility, Sky Park, in North Ryde, also scheduled for completion in 2022.

As the only A-League team in the city for the first seven years of its existence, the club's fans hail from all across the Sydney Metropolitan Area. Sydney's main supporter group is known as "The Cove", named after the original title given to the colonial settlement of Sydney, Sydney Cove. The club has rivalries with the Western Sydney Wanderers, named the Sydney Derby, and Melbourne Victory, known as The Big Blue. Alex Brosque has the record for most goals scored for the club, having scored 83 goals . Rhyan Grant has the most appearances for the club with 268 games.