William Arnott was a Scottish baker and entrepreneur, best known for founding the Arnott's Biscuits company in 1865. He started his career in Sydney, Australia, where he began producing a variety of baked goods, including biscuits that quickly gained popularity. Under Arnott's leadership, the company expanded its product range and became a household name in Australia. His innovative approach to baking and marketing helped establish Arnott's as a leading brand in the biscuit industry, known for iconic products like Tim Tams and Shapes.