| Doubles | |
|---|---|
| 1990 Australian Men's Hardcourt Championships | |
| Champions |  Andrew Castle  Nduka Odizor |
| Runners-up |  Alexander Mronz  Michiel Schapers |
| Score | 7–6, 6–2 |
Neil Broad and Stefan Kruger were the defending champions but did not compete that year.
Andrew Castle and Nduka Odizor won in the final 7–6, 6–2 against Alexander Mronz and Michiel Schapers.
Tom Nijssen / 
Mark Woodforde (quarterfinals)
Goran Ivanišević / 
Petr Korda (quarterfinals)
Paul Annacone / Shelby Cannon (semifinals) Udo Riglewski / Michael Stich (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | T Nijssen M Woodforde | 7 | 7 | ||||||||||||||||||||||||
| P Carter J Fitzgerald | 6 | 5 | 1 | T Nijssen M Woodforde | 6 | 3 | |||||||||||||||||||||
 N Kulti M Larsson | 4 | 4 | A Castle N Odizor | 7 | 6 | ||||||||||||||||||||||
| A Castle N Odizor | 6 | 6 | A Castle N Odizor | 6 | 7 | ||||||||||||||||||||||
| 3 | P Annacone S Cannon | 7 | 6 | 3 | P Annacone S Cannon | 4 | 6 | ||||||||||||||||||||
P Kühnen  L Lavalle | 5 | 4 | 3 | P Annacone S Cannon | 6 | 7 | |||||||||||||||||||||
 A Mora J Schor | 6 | 6 | 2 | P Haarhuis M Koevermans | 4 | 6 | |||||||||||||||||||||
| P Haarhuis M Koevermans | 4 | 7 | 6 | A Castle N Odizor | 7 | 6 | |||||||||||||||||||||
| B Dyke S Youl | 6 | 2 | Q | A Mronz M Schapers | 6 | 2 | |||||||||||||||||||||
| Q | A Mronz M Schapers | 7 | 6 | Q | A Mronz M Schapers | 6 | 4 | 7 | |||||||||||||||||||
 G Muller S Warner | 6 | 4 | 4 | U Riglewski M Stich | 3 | 6 | 6 | ||||||||||||||||||||
| 4 | U Riglewski M Stich | 7 | 6 | Q | A Mronz M Schapers | 7 | 6 | ||||||||||||||||||||
 G Forget E Winogradsky | 6 | 6 | 6 | G Forget E Winogradsky | 6 | 4 | |||||||||||||||||||||
| R Båthman P Henricsson | 7 | 3 | 4 | G Forget E Winogradsky | 7 | 6 | |||||||||||||||||||||
| J-P Fleurian C Pioline | 1 | 4 | 2 | G Ivanišević P Korda | 6 | 4 | |||||||||||||||||||||
| 2 | G Ivanišević P Korda | 6 | 6 | ||||||||||||||||||||||||
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