| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Giordano Bruno Capparella | Male | 1 | 92nd |
| Mark Bryant | Male | 9 | 16th |
| Hannah Buchanan | Female | 4 | 16th |
| Jordan Buchanan | Male | 1 | 17th |
| Kathryn Buckenburg | Female | 7 | 8th |
| Scott Bucknell | Male | 1 | 11th |
| Kat Bulk | Female | 6 | 19th |
| Joshua Bull | Male | 2 | 27th |
| Jack Bullock | Male | 1 | 14th |
| Ian Bunckenburg | Male | 1 | 160th |
| Joerg Bungent | Male | 1 | 23rd |
| Lizzy Bunkenburg | Female | 9 | 4th |
| Andrea Bunn | Female | 4 | 3rd |
| Chloe Bunnett | Female | 1 | 65th |
| Christine Burben | Female | 2 | 19th |
| Troy Burbidge | Male | 4 | 3rd |
| Devern Burchett | Male | 7 | 3rd |
| Amelia Burgess | Female | 1 | 16th |
| Carolyn Burmester | Female | 1 | 99th |
| Moss Burmester | Male | 1 | 77th |
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