| 1989 Australian Open | |
|---|---|
| Date | 16–29 January 1989 |
| 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 | |
| Kim Kessaris | |
| Boys' doubles | |
.svg.png.webp){kind=small} Johan Anderson / Todd Woodbridge | |
| Girls' doubles | |
| Andrea Strnadová / Eva Švíglerová | |
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.
Seniors
Men's singles
Ivan Lendl defeated Miloslav Mečíř 6–2, 6–2, 6–2
- It was Lendl's 7th career Grand Slam title and his 1st Australian Open title.
Women's singles
Steffi Graf defeated Helena Suková 6–4, 6–4
- It was Graf's 6th career Grand Slam title and her 2nd Australian Open title.
Men's doubles
Rick Leach / Jim Pugh defeated Darren Cahill / Mark Kratzmann 6–4, 6–4, 6–4
- It was Leach's 2nd career Grand Slam title and his 2nd Australian Open title. It was Pugh's 4th career Grand Slam title and his 3rd Australian Open title.
Women's doubles
Martina Navratilova / Pam Shriver defeated Patty Fendick / .svg.png.webp){kind=small}
Jill Hetherington 3–6, 6–3, 6–2
- It was Navratilova's 52nd career Grand Slam title and her 11th Australian Open title. It was Shriver's 21st career Grand Slam title and her 7th and last Australian Open title.
Mixed doubles
Jana Novotná / Jim Pugh defeated Zina Garrison / Sherwood Stewart 6–3, 6–4
- It was Novotná's 3rd career Grand Slam title and her 2nd Australian Open title. It was Pugh's 5th career Grand Slam title and his 4th Australian Open title.
Juniors
Boys' singles
Nicklas Kulti defeated Todd Woodbridge 6–2, 6–0
Girls' singles
Kim Kessaris defeated Andrea Farley 6–1, 6–2
- Kessaris was the first and only American junior ever to win this event.
Boys' doubles
Johan Anderson / Todd Woodbridge defeated Andrew Kratzmann / Jamie Morgan 6–4, 6–2
Girls' doubles
Andrea Strnadová / Eva Švíglerová defeated Nicole Pratt / Angie Woolcock 6–2, 6–0