John Aloisi (/ˌæloʊˈiːsiː/; born 5 February 1976) is an Australian former soccer player and current head coach of A-League club Western United.

He did not appear in any official games for the club, and played sparingly for his next team, fellow top division outfit Royal Antwerp F.C.

He made his Sky Blues debut in a 1–1 home draw against Derby County, appearing as a late substitute; also coming from the bench, he netted in the next match, 1–1 against Tottenham Hotspur.

He scored a hat-trick against Preston North End in the season's Football League Cup – 4–1 home win, 7–2 on aggregate[6]).

[11] The team was able to not include his wages in the salary cap due to a loop hole relating to injured players.

[13] On 3 March 2008, after failing to re-sign with the Mariners, Aloisi penned a two-year deal with Sydney FC, for an undisclosed fee reported to be $1.4 million a season,[14] making him the highest-paid player based in Australia in any of the four football codes.

He soon decided against the deal, opting instead to spend the entire pre-season with Sydney FC, under the club's new coach Vítězslav Lavička.

[15] He scored twice in a friendly with the Newcastle United Jets FC,[16] and eventually started repaying the faith the team had in him by scoring a double in a 3–2 win against North Queensland Fury FC in Townsville, in the first game of the season; he finished the campaign – winning both the minor and the major championships – as the first Sydney player ever to reach double digits in a single season.

On 12 February 2011, he played the final game of his career against former team Sydney FC, in the last round of the A-League season, scoring and being replaced by in the 83rd minute by Kristian Sarkies, to a standing ovation from the home crowd.

Also in that year, he was selected to the FIFA Confederations Cup, scoring in a 3–1 group stage win against Mexico for the eventual runners-up.

On 16 November 2005, Aloisi scored the decisive penalty against Uruguay in the 2006 FIFA World Cup playoffs, after a 1–1 aggregate tie.

[20] On 21 July 2007, Aloisi scored in the 2007 AFC Asian Cup's quarterfinal match against Japan (1–1), in an eventual penalty shootout exit in Australia's first ever participation in that tournament.

[32] In May 2022, Aloisi guided Western United to the A-League Championship, with a 2–0 win over defending champions Melbourne City.

[38] Adelaide City Osasuna Central Coast Mariners Sydney FC Australia Individual Western United