Pamela Horvathova, aged 16, was last seen in Stainforth Road, Darnall, on Friday, December 21, at 10am, and was reported missing on Christmas Eve. Â
She was last seen wearing a black coat, with blue trousers and black shoes. She has black and blonde hair.
In a statement, South Yorkshire Police said: 'It's believed Pamela has friends in the Pitsmoor area of Sheffield, but police are keen to hear from anyone who may have seen Pamela or knows where she is.
'Please call 101 quoting incident number 941 of 24 December 2018.'Â Â