They were named by Ross Arnott, who attended the 1958 Kentucky Derby and decided that the name of the winning horse, Tim Tam, was perfect for a planned new line of biscuits.
De blev navngivet af Ross Arnott, som havde medvirket i Kentucky Derby i 1958, hvorefter han besluttede at navnet på den vindende hest Tim Tam var perfekt til den nye linje af kiks.