Graham James Arnold (born 3 August 1963 in Sydney, New South Wales) is a former football (soccer) player, manager of A-League club Sydney FC. Arnold was appointed to work as an assistant coach of the Australian national football team in 2000. After head coach Frank Farina was sacked in 2005, Arnold worked with Guus Hiddink for the 2006 FIFA World Cup campaign, in which they made the second round of the finals. After Hiddink left, he became acting coach of the Socceroos. Arnold went on take the manager role at A-League club the Central Coast Mariners between 2010 and 2013, where he guided the club to two premierships and a championship. He is a member of the Football Federation Australia Football Hall of Fame. Arnold Place in the Sydney suburb of Glenwood is named for him.