The sixth series of the Australian cooking game show MasterChef Australia premiered on Monday, 5 May 2014 on Network Ten.

This series was won by Brent Owens in the final against Laura Cassai on 28 July 2014. Coincidentally, Cassai and third-placed Emelia Jackson attended the same high school, Siena College.^[1] Owens is the last male winner until Sashi Cheliah from tenth series.

In a reversal from the previous season, the audition and preliminary stages were again broadcast as part of the series, and the weekly theme format was dropped. Series 6 also introduced the "power apron", which granted its wearer a number of advantages and control across a series of challenges. In elimination challenges and pressure tests, the contestant wore black aprons with their name in it. The same type of aprons were used by eliminated contestants in week 8 of the 5th season of Masterchef Australia. In the previous seasons, the contestant who faced an elimination test or a pressure test wore a black apron without their name on it. In addition, the Immunity Challenges were expanded to have a preliminary round between three contestants before the winner moved on to cook for immunity against a professional chef. Kylie Kwong regularly appeared as a mentor during the Immunity Challenge episodes in addition to a recurring role as a guest judge.

• Julie Goodwin – Mystery Box Challenge 1
• Adam Liaw – Mystery Box Challenge 1
• Kate Bracks – Mystery Box Challenge 1
• Andy Allen – Mystery Box Challenge 1
• Emma Dean – Mystery Box Challenge 1
• Shannon Bennett – Pressure Test 1
• Alla Wolf-Tasker – Pressure Test 2
• Ollie Gould – Immunity Challenge 1
• Christy Tania – Pressure Test 3
• Benjamin Cooper – Immunity Challenge 2
• Darren Purchese – Team Challenge 3, MasterClass 2
• Joe Grbac – Pressure Test 4
• Scott Picket – Pressure Test 4
• Matt Stone – Immunity Challenge 3
• Nobu Matsuhisa – Pressure Test 5
• Jock Zonfrillo – Immunity Challenge 4
• Marco Pierre White – Week 6
• Donovan Cooke – Immunity Challenge 5
• Vikas Khanna – Pressure Test 7
• Jason Jones – Immunity Challenge 6^{[lower-alpha 1]}
• James Viles – Immunity Challenge 6^{[lower-alpha 2]}
• Nick Palumbo – Pressure Test 9
• John Lawson – Immunity Challenge 7
• Dave Verhuel – Elimination Challenge 9
• Heston Blumenthal – Week 11
• Peter Gilmore – Final

Colour key:

  – Highest rating during the series

  – Lowest rating during the series