Tiffiny Hall is an Australian fitness personality and author, best known for her time as a trainer on The Biggest Loser: Families. During her time on the show, she also ran a blog on the show's website.

Born on July 11, 1984 in Melbourne, Australia, Tiffiny Hall is a Cancer. She rose to prominence as a trainer on The Biggest Loser: Families, where she helped contestants lose weight and get healthy. After her time on the show, she continued to work in the fitness industry, running a blog and writing books on health and fitness.