mens: roger federer
womens: Serena Williams
womens doubles: Serena and Venus Williams
mens doubles: Mike and Bob Bryan
Victoria Azarenka
Novak Djokovic defeated Rafael Nadal.
The pair who won the Mixed Doubles title in 2012 are Bethanie Mattek-Sands and Horia Tecau, of USA and Romania, respectively.
The Australian Open 2014 Men's final was won by Stan Wawrinka.
Roger Federer has won the 2010 Australian Open
2012 Australian Open is January 16-29 2012
Kim Clijsters won against Li Na at the Australian Open in 2011.
Jiri Vasely won the boys junior championship of Australian Open 2011.
Yes nadal has won australian open. He defeated federer in the final. He has won all four grand slams.
Leander Paes and Radek Stepanek won the 2012 Australian Open in Men's Doubles. They beat Americans Mike and Bob Bryan in straight sets, 7-6 (7-1) and 6-2. Leander Paes is from India and Radek Stepanek is from the Czech Republic. They also won the US Open Mens' Doubles in 2013.
Maria Sharapova won the Australian Open in 2008.
The Women's Singles title was won by Kim Clijsters at the 2011 Australian Open.