| 1989 Australian Open | |
|---|---|
| Date | 16–29 January | 
| Edition | 77th | 
| Category | Grand Slam (ITF) | 
| Surface | Hardcourt (Rebound Ace) | 
| Location | Melbourne, Australia | 
| Venue | Flinders Park | 
| Champions | |
| Men's Singles | |
|  Ivan Lendl | |
| Women's Singles | |
|  Steffi Graf | |
| Men's Doubles | |
|  Rick Leach /  Jim Pugh | |
| Women's Doubles | |
|  Martina Navratilova /  Pam Shriver | |
| Mixed Doubles | |
|  Jana Novotná /  Jim Pugh | |
| Boys' Singles | |
|  Nicklas Kulti | |
| Girls' Singles | |
|  Kimberly Kessaris | |
| Boys' Doubles | |
|  Johan Anderson /  Todd Woodbridge | |
| Girls' Doubles | |
|  Andrea Strnadová /  Eva Sviglerova | |
The 1989 Australian Open was a tennis tournament played on outdoor hard courts at Flinders Park in Melbourne in Victoria in Australia. It was the 77th edition of the Australian Open and was held from 16 through 29 January 1989.
 Ivan Lendl defeated
 Ivan Lendl defeated  Miloslav Mečíř 6–2, 6–2, 6–2
 Miloslav Mečíř 6–2, 6–2, 6–2
 Steffi Graf defeated
 Steffi Graf defeated  Helena Suková 6–4, 6–4
 Helena Suková 6–4, 6–4