The 2000 Australian Open was a tennis tournament played on outdoor hard courts at Melbourne Park in Melbourne in Australia. It was the 88th edition of the Australian Open and was held from 17 through 30 January 2000. Both Yevgeny Kafelnikov and Martina Hingis were unsuccessful in their title defences, both being defeated in the final matches by Andre Agassi and Lindsay Davenport, respectively. For Agassi, it was the second of four Australian Open titles, and for Davenport it was her final Grand Slam title.

Former champions

The following are the former Grand Slam champions and finalists in the draw: The following are former Grand Slam finalists in the draw:

Seniors

Men's singles

🇺🇸 Andre Agassi defeated 🇷🇺 Yevgeny Kafelnikov, 3–6, 6–3, 6–2, 6–4

Women's singles

🇺🇸 Lindsay Davenport defeated Martina Hingis, 6–1, 7–5

Men's doubles

Ellis Ferreira / 🇺🇸 Rick Leach defeated Wayne Black / 🇦🇺 Andrew Kratzmann, 6–4, 3–6, 6–3, 3–6, 18–16

Women's doubles

🇺🇸 Lisa Raymond / 🇦🇺 Rennae Stubbs defeated Martina Hingis / 🇫🇷 Mary Pierce, 6–4, 5–7, 6–4

Mixed doubles

🇦🇺 Rennae Stubbs / 🇺🇸 Jared Palmer defeated 🇪🇸 Arantxa Sánchez Vicario / 🇦🇺 Todd Woodbridge, 7–5, 7–6(7–3)

Juniors

Boys' singles

🇺🇸 Andy Roddick defeated Mario Ančić, 7–6(7–2), 6–3

Girls' singles

🇭🇺 Anikó Kapros defeated 🇪🇸 María José Martínez Sánchez, 6–2, 3–6, 6–2

Boys' doubles

🇫🇷 Nicolas Mahut / 🇪🇸 Tommy Robredo defeated 🇺🇸 Tres Davis / 🇺🇸 Andy Roddick, 6–2, 5–7, 11–9

Girls' doubles

🇭🇺 Anikó Kapros / 🇦🇺 Christina Wheeler defeated 🇺🇸 Lauren Barnikow / 🇺🇸 Erin Burdette, 6–3, 6–4

Seeds

Men's singles

Women's singles

Withdrawals: Marcelo Ríos, Greg Rusedski, Patrick Rafter, Venus Williams, Monica Seles

Prize money

Total prize money for the event was $1000