15-year-old Victoria Collier from Thames Ditton is missing.
She was last seen leaving her home address 10am on Wednesday 3 December.
Victoria is described as white, around 5ft tall and of slim build. She has very long straight mousey brown hair and blue eyes and speaks with a northern accent. She was last seen wearing a bright red knee length Alaska Parka coat (Eskimo style) with a fur collar, a navy blue Superdry flower pattern top and jeans.
Victoria has links to the Surbiton and Manchester areas.
Detective Inspector Paddy Mayers of Surrey Police's Missing Persons unit said: "We are concerned about Victoria’s safety and are urging anyone with information about her whereabouts to contact us as soon as possible.
"Equally, if Victoria sees this appeal please get in contact to confirm you are safe and well. Your mum, sister and friends are all really worried about you and just want you to come home as soon as possible.”
Anyone with any information is asked to call Surrey Police on 101, quoting reference 45140102222 or call independent charity Crimestoppers anonymously on 0800 555 111