Kasey Webb was last seen at around 18:00 on 26th December at her home in Wootton. Although phone contact was made on 28th, Police remain concerned for her welfare which has prompted an appeal to be launched overnight.
Kasey is known to have connections throughout Hampshire and the Isle of Wight, as well as in the London and Shrewsbury areas.
The youngster is described as white, around 5ft 3″ tall and of slim build. She has long black hair and was last seen wearing light-coloured jeans, a black leather jacket and black trainers.
Anyone with information is asked to contact Hampshire Constabulary on 101.