Harold Kewell (; born 22 September 1978) is an Australian football coach and former player who was most recently the manager of National League club Notts County.
Kewell played for Leeds United, Liverpool, Galatasaray, Melbourne Victory, Al-Gharafa and Melbourne Heart.
While at Leeds he was named the PFA Young Player of the Year in 2000.
Internationally he has received 58 caps, and scored 17 goals, while playing for the Australian national team.
A left winger also capable of playing as an attacking midfielder or second striker, he is often regarded within the media as "Australia's finest football export", despite his career being blighted with injury.
In 2012, Kewell was named Australia's greatest footballer in a vote by Australian fans, players and media.Kewell scored a goal against Croatia which took Australia through to the knockout stages of the 2006 FIFA World Cup, the Australian national team's second World Cup.
He is a member of the Executive Committee of the Australian Professional Footballers' Association.
Kewell also has a British passport through his father's heritage.
Former Middlesbrough midfielder-turned pundit Robbie Mustoe named Kewell as one of the greatest players he had played against but questioned his consistency and attitude after his initial injuries.
Former German international Michael Ballack has also highlighted Kewell's ability and inconsistency.Kewell has represented Australia at the 1995 FIFA U-17 World Championship, the 1997 FIFA Confederations Cup, where Australia finished runners-up, the 2004 OFC Nations Cup, which Australia claimed for the fourth time, the 2006 FIFA World Cup, the 2007 AFC Asian Cup, the 2010 FIFA World Cup and the 2011 AFC Asian Cup, where Australia finished runners-up.