Sydney United 58 FC

Sydney United 58 FC, commonly known as Sydney United or SU58, is a men's semi-professional soccer club based in the suburb of Edensor Park in Sydney, New South Wales (NSW). Its senior team plays in the National Premier Leagues NSW (NPL), in the second tier of the Australian league system. It also competes in the Australian Championship as a foundation club, and regularly enters the Australian-Croatian Soccer Tournament. It plays its home games at the Sydney United Sports Centre.

One of many Croatian soccer clubs in Australia, the club was founded in 1958 as Sydney Croatia, and was originally based in Surry Hills. It joined the burgeoning Football NSW and earned promotion to its first division in 1962. Following a decade of struggle, the club eventually won three titles in the 1970s and 80s, built the Sports Centre as their permanent home ground, and moved on to the National Soccer League (NSL) in 1984. Though Croatia failed to win a championship during their 21 seasons in the league, they finished runners-up thrice, and won an NSL Cup and two National Youth League championships. It adopted its current name in 1993. Sydney United returned to NSW's first division after the NSL's demise in 2004, and have remained in the league since.

Sydney United's honours include five NSW men's titles and eight Waratah Cups. It also won NPL national titles in 2013 and 2016. Its best performance in the Australia Cup is an appearance in the 2022 final. The club has fierce rivalries with the Marconi Stallions and Bonnyrigg White Eagles, based in the nearby suburbs of Bossley Park and Bonnyrigg Heights. Notable former players for the club include national team players Graham Arnold, Mark Bosnich, Craig Foster, and Tony Popovic. Its supporters' group has been the subject of controversy for its Ustaše elements, which were highly publicised during the club's 2022 Australia Cup run.