Police are appealing for public assistance to help locate missing 16-year-old Juli Piper.
Juli was last seen on 26 October in the Bentleigh area.
Police have concerns for her welfare due to her age and the length of time she has been missing.
Juli is 150cm tall with a thin build, short blonde hair, braces and a pale complexion.
She is known to frequent the Frankston, Bentleigh, Moorabbin, Traralgon, St Albans and Collingwood areas.
Investigators have released an image of Juli in the hope someone recognises her and can provide information regarding her current whereabouts.
She was last seen wearing a purple shirt, black leggings, a black mask, a camouflage pattern jacket and was carrying a backpack.
Anyone with information about Juli is asked to contact Caulfield Police Station on 03 9524 9500.