Australian Indoor Championships

Australian Indoor Tennis Championship
Defunct tennis tournament
Event name	Varied
Tour	Grand Prix circuit (1973–1989) ATP Tour(1990–94)
Founded	1973
Abolished	1994
Editions	22
Location	Sydney, Australia
Venue	Hordern Pavilion (1973–1982) Sydney Entertainment Centre (1983–1994)
Surface	Hard / indoor

The Australian Indoor Tennis Championship, also known as the Australian Indoor Championship, the Australian Indoor Open and the Sydney Indoor for short, was a professional men's tennis tournament was played in Sydney, Australia. The tournament was an initiative from John Newcombe and was part of an expanding Asian-Australian fall Grand Prix circuit. The event was played under various names as part of the Grand Prix tennis circuit from 1973 through 1989 and as part of the ATP Tour from 1990 through 1994. It was played on indoor hard courts at the Hordern Pavilion on the Sydney Showground through 1982 and at the Sydney Entertainment Centre beginning in 1983. The tournament was cancelled in June 1994 on financial grounds with tournament director and co-founder Graham Lovett citing insufficient television coverage and the difficulty of signing top players as the main reasons.

From 1975 to 1989 the event was sponsored by the Custom Credit and Swan Premium.

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