Rosie Huntington-Whiteley was born at the Freedom Fields Hospital in Plymouth, Devon, England. Her mother, Fiona (née Jackson), is a fitness instructor, and her father, Charles Andrew Huntington-Whiteley, is a chartered surveyor. She has two younger siblings; a brother, Toby, and a sister, Florence. Her paternal great-great-grandfather was politician Sir Herbert Huntington-Whiteley, 1st Baronet; Herbert's son, Eric, was the "black sheep" of the family, and had married Rosie Huntington-Whiteley great-grandmother, Enid Kohn, who was from a family of Polish Jews who immigrated to England in the 1870s. Rosie's paternal grandmother was the daughter of Jacob Franks, a Sussex surgeon.
Rosie Huntington-Whiteley grew up in Tavistock, Devon, on a farm. Growing up in Devon, she was bullied and teased at school for having a double-barrelled name, no breasts, and for her full lips (now one of her most famous assets). She got voted Miss Big Mouth because she talked constantly and, after a growth spurt at the age of 13, Girl Most Likely To Become A Supermodel. Bored of her farm life, she was eager to get out and go to London. In 2003, while studying at Tavistock College, she was discovered by Profile Model Management while seeking internships with several London based modelling agencies. Rosie Huntington-Whiteley first gig in front of the camera was at 16, posing for a Levi's commercial. She spent all of her first cheque on a Ford Ka, even though she couldn't drive, thinking it would be the one and only time she would ever get paid for modelling.