1990 Australian Indoor Championships
| 1990 Australian Indoor Championships | |
|---|---|
| Date | 1 – 7 October |
| Edition | 18th |
| Category | Championship Series |
| Draw | 48S / 24D |
| Prize money | $750,000 |
| Surface | Hard / indoor |
| Location | Sydney, Australia |
| Venue | Sydney Entertainment Centre |
| Champions | |
| Singles | |
 Boris Becker |
|
| Doubles | |
 Broderick Dyke /  Peter Lundgren |
|
The 1990 Australian Indoor Championships was a men's tennis tournament played on indoor hard courts at the Sydney Entertainment Centre in Sydney in Australia and was part of the Championship Series of the 1990 ATP Tour. It was the 18th edition of the tournament and was held from 1 through 7 October 1990. Second-seeded Boris Becker won the singles title, his second at the event after 1986.
Boris Becker defeated Stefan Edberg 7–6, 6–4, 6–4
Broderick Dyke / Peter Lundgren defeated Stefan Edberg / 
Ivan Lendl 6–2, 6–4
...
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