Australian Open - Most Titles Won

 

Men's Singles - 5(Five)
Novak Djokovic(Serbia) -2008, 2011, 2012, 2013, 2015

Women's Singles - 6(Six)
Serena Williams(USA) - 2003, 2005, 2007, 2009, 2010, 2015

Men's Doubles - 6(Six)
Bob and Mike Bryan(USA) -  2006, 2007, 2009, 2010, 2011, 2013

Youngest winner
Women's Singles 
Martina Hingis(Swiss( - 16 years and 4 months (1997)
Womens's Doubles
Mirjana Lucic(Croatia) - 15 years and 10 months (1998)

2015 Australian Open Title Winners

Event	Champion	Runner-up	Score
2015 Men's Singles	Novak Djokovic	Andy Murray	7–6, 6–7, 6–3, 6–0
2015 Women's Singles	Serena Williams	Maria Sharapova	6–3, 7–6
2015 Men's Doubles	Simone Bolelli Fabio Fognini	Pierre-Hugues Herbert Nicolas Mahut	6–4, 6–4
2015 Women's Doubles	Bethanie Mattek-Sands Lucie Šafářová	Chan Yung-jan Zheng Jie	6–4, 7–6
2015 Mixed Doubles	Martina Hingis Leander Paes	Kristina Mladenovic Daniel Nestor	6–4, 6–3