Lidia Lupu, 17, was last seen at Crown Point North Shopping Park, Worthington Way in Denton, Tameside on Tuesday 15 August 2023.
Lidia is described as a Romanian female, 5ft 2 of slim build with dark red shoulder-length hair. She has a beauty spot on her nose and wears braces on her teeth.
Lidia was last seen wearing a grey tracksuit, black cardigan, black coat and sliders. She was carrying a green bag.
Officers are becoming increasingly concerned about Lidia and want to know that she is safe and well.
Anyone with any information about Lidia’s whereabouts is asked to contact police on 101.