Miranda May Kerr was born on 20 April 1983 in Sydney and raised in the small town of Gunnedah. Kerr's paternal grandmother lived on a farm, where she "raced motorbikes and rode horses." Her family moved to Brisbane to allow Kerr and her brother to experience city life.
Kerr was the first Australian Victoria's Secret model and also represented the Australian department store chain David Jones.
She began modelling in the fashion industry when she was 13, winning the 1997 Dolly magazine model search competition. Since 2008, Kerr has consistently ranked on the Forbes list of highest earning models.
She originally aspired to become a nutritionist and later studied nutrition and health psychology after her high school graduation, but entered a magazine contest shortly before her fourteenth birthday. Kerr attended All Hallows' School, where she graduated in 2000.
Kerr began modeling for various clothing brands, runways, and print advertisements. Mostly notably, the companies she has worked for include Dolly, Tigerlily, Roxy, Billabong Girls, One Teaspoon, Victoria's Secret, Qantas, Maybelline, Vogue, and Marie Claire. Kerr relocated to New York City in 2004.