This is a list of episodes of all seasons of the Australian television series The Biggest Loser.
The first season averaged approximately 1,400,000 viewers, with the finale watched by 2,300,000.
The sixth season, also known as The Biggest Loser Families, premiered on 30 January 2011 with 1.356 million viewers tuning in, making it the fourth-watched program that night.
The seventh season also known as The Biggest Loser Singles aired on 23 January 2012.
The eighth season also known as The Biggest Loser: The Next Generation aired on 17 March 2013.