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.

The following are the former Grand Slam champions and finalists in the draw: The following are former Grand Slam finalists in the draw: Andre Agassi defeated Yevgeny Kafelnikov, 3–6, 6–3, 6–2, 6–4 Lindsay Davenport defeated Martina Hingis, 6–1, 7–5 Ellis Ferreira / Rick Leach defeated Wayne Black / Andrew Kratzmann, 6–4, 3–6, 6–3, 3–6, 18–16 Lisa Raymond / Rennae Stubbs defeated Martina Hingis / Mary Pierce, 6–4, 5–7, 6–4 Rennae Stubbs / Jared Palmer defeated Arantxa Sánchez Vicario / Todd Woodbridge, 7–5, 7–6(7–3) Andy Roddick defeated Mario Ančić, 7–6(7–2), 6–3 Anikó Kapros defeated María José Martínez Sánchez, 6–2, 3–6, 6–2 Nicolas Mahut / Tommy Robredo defeated Tres Davis / Andy Roddick, 6–2, 5–7, 11–9 Anikó Kapros / Christina Wheeler defeated Lauren Barnikow / Erin Burdette, 6–3, 6–4

Withdrawals: Marcelo Ríos,[1] Greg Rusedski,[1] Patrick Rafter, Venus Williams,[1] Monica Seles[1] Total prize money for the event was $1000