The third series of The Great British Bake Off ™ began airing on Tuesday 14 August 2012. The series was filmed at Harptree Court in East Harptree, Somerset.

Seven thousand applied for the competition and twelve contestants were chosen. The competition was won by John Whaite.

The third series was broadcast as the fifth season on PBS in the United States where it was called The Great British Baking Show ™